019be3d6-84ee-7348-8933-35d695a39730
Open this run to answer one question: is this real attacker-relevant behavior with real impact, or just normal contract plumbing?
| ID | Type | Status | Attempts | Heartbeat |
|---|---|---|---|---|
| 41142 | artifact.fetch | complete | 1 / 3 | 2 months ago |
| 41143 | proxy.resolve | complete | 1 / 3 | 2 months ago |
| 41144 | tool.cast_disasm | complete | 1 / 3 | 2 months ago |
| 41145 | analysis.bundle | complete | 1 / 3 | 2 months ago |
| 41146 | capability.graph | complete | 1 / 3 | 2 months ago |
| 41147 | detector.run | complete | 1 / 3 | 2 months ago |
| 41148 | validation.fork | complete | 1 / 3 | 2 months ago |
| 41441 | report.consolidate | complete | 1 / 6 | 2 months ago |
{
"status": "not_proxy"
}
No slither job recorded yet.
{"no_findings":false,"summary":"Bytecode shows two low-level CALL sites with computed target/value and no detected sender-based guards; return-data is not validated. Evidence is bytecode-only and the call target may be constant (self) per validation, so impact depends on how these entrypoints are used.","findings":[{"severity":"medium","category":"access_control","title":"Externally reachable CALL with computed target/value (possible arbitrary execution/ETH transfer)","exploit_scenario":"If these CALL parameters are influenced by calldata and the entrypoint is publicly callable, an attacker can direct the contract to call arbitrary targets with the contract’s ETH balance, potentially draining funds or abusing approvals. Validation hints the target might be constant (self), so confirm whether the target/value are actually user-controlled before relying on this risk assessment.","recommendation":"Restrict who can invoke the external-call path (e.g., owner/role checks) or require verifiable authorization (signatures). If this is intended to be an executor, add an allowlist for targets and cap ETH value; document the trust model explicitly.","evidence":"Both callsites are CALL with target/value marked as computed and no guards detected; no CALLER/ORIGIN opcodes observed. Detector flagged “Untrusted CALL target/value reachable” and “ETH value transfer possible.” Validation trace suggests a constant target equal to the contract address, so this may be a false positive if the target is not actually user-controlled.","locations":["pc:971","pc:1108"]},{"severity":"low","category":"other","title":"Return data not validated for low-level CALLs","exploit_scenario":"If these CALLs interact with ERC20-like tokens that return false without reverting, the contract may treat the call as successful even though the token action failed, leading to accounting inconsistencies or stuck funds. If the CALLs are arbitrary, this may be acceptable but should be explicit.","recommendation":"When expecting ERC20-style semantics, enforce `success && (returndata.length == 0 || abi.decode(returndata, (bool)) == true)` or use a well-tested safe-call helper.","evidence":"Callsites list `returndata_checked: null`; success is checked only via the CALL result, with no return-data decoding in the call blocks.","locations":["pc:971","pc:1108"]}]}
OpenAI Codex v0.77.0 (research preview)
--------
workdir: /tmp/codex-pt6tfdez
model: gpt-5.2-codex
provider: openai
approval: never
sandbox: read-only
reasoning effort: high
reasoning summaries: auto
session id: 019be49e-1367-7761-a69f-166d122c52af
--------
user
You are a security auditor. You ONLY have runtime bytecode + analysis artifacts.
You MUST read `BYTECODE_BUNDLE.json` before concluding; it contains the bytecode summary,
evidence bundle, callsites, storage slots, and detector findings.
Special cases when reasoning from bytecode (be explicit about uncertainty):
- Selector inference is best-effort; missing selectors are common.
- Fallback/receive paths may be the only entrypoints.
- CALL vs DELEGATECALL semantics differ; DELEGATECALL executes in caller storage.
- Proxy patterns (EIP-1967, minimal proxies, beacon) change which storage is authoritative.
- Storage slots are raw; mappings/arrays appear via keccak patterns, names are unknown.
- Guard detection is heuristic; absence of guards does NOT mean unguarded.
- Returndata checking is unknown unless explicitly shown in evidence.
- Precompiles (0x1..0x9) and common ERC20 transfer selectors may appear; do not over-claim.
Output MUST be valid JSON matching the provided schema.
- If you find nothing meaningful: set no_findings=true and findings=[].
- Otherwise: set no_findings=false and include findings with severity/category/title.
- Locations can be pc references like "pc:0x123" or selectors like "selector:0xa9059cbb".
Focus on: reentrancy, access control, upgradeability/proxy issues, signature validation,
accounting/invariant breaks, dangerous delegatecall, and untrusted external calls.
Be conservative: if evidence is weak, mark severity low/medium and explain why.
mcp startup: no servers
thinking
**Locating BYTECODE_BUNDLE.json**
I'm searching the codebase for BYTECODE_BUNDLE.json using a file listing tool to proceed with reading its contents.
exec
/bin/bash -lc ls in /tmp/codex-pt6tfdez succeeded in 6ms:
BYTECODE_BUNDLE.json
codex-output-schema.json
exec
/bin/bash -lc 'cat BYTECODE_BUNDLE.json' in /tmp/codex-pt6tfdez succeeded in 8ms:
{
"analysis_artifact": {
"address": "0xd9b20cfed69e76acae3fa1c2ee1faafafcb41f55",
"artifact_hash": "0x4617c1684b7a904dbc913bdb4dbce61b5bffb6fdc8cb4ba9df4ac51eaeadb8a2",
"artifact_json": {
"auth": {
"guards": []
},
"basic_blocks": [
{
"end_pc": 12,
"hash": "0x6052ec2baf1fb58cbd3f3caa60607e9bcd0236773f0f25438434bedc50d6ef5f",
"opcodes": [
"PUSH1",
"PUSH1",
"MSTORE",
"PUSH1",
"CALLDATASIZE",
"LT",
"PUSH2",
thinking
**Inspecting selector mappings and callsites**
I found four selectors with two missing entry PCs, indicating incomplete selector mapping. Calls occur at PCs 971 and 1108; next, I'll investigate callsites and evidence bundle entries around these PCs to clarify contract behavior.
exec
/bin/bash -lc 'rg -n "pc":971|pc": 971|call:971|CALL" BYTECODE_BUNDLE.json' in /tmp/codex-pt6tfdez exited 127 in 21ms:
/bin/bash: line 1: pc: 971|call:971|CALL: command not found
thinking
**Correcting search pattern syntax**
exec
/bin/bash -lc "rg -n \"pc\\\": 971|call:971\" BYTECODE_BUNDLE.json" in /tmp/codex-pt6tfdez succeeded in 7ms:
1301: "pc": 971,
2221: "to": "call:971",
2225: "from": "call:971",
2634: "id": "call:971",
2636: "pc": 971,
2688: "pc": 971,
2733: "pc": 971,
thinking
**Planning callsite extraction from basic blocks**
I'm focusing on finding callsite details by locating the relevant basic block containing the call PC and examining its opcodes to infer state changes and call context. I'll extract the basic block by its start PC using Python JSON parsing to safely analyze the block's instructions.
exec
/bin/bash -lc "python - <<'PY'
import json
p='/tmp/codex-pt6tfdez/BYTECODE_BUNDLE.json'
with open(p) as f:
data=json.load(f)
blocks=data['analysis_artifact']['artifact_json']['basic_blocks']
for b in blocks:
if b['start_pc']==891:
print(b)
PY" in /tmp/codex-pt6tfdez succeeded in 33ms:
{'end_pc': 978, 'hash': '0x0b61e4c70fa06d2e531653d428f803794e8f63159e3a4e2c0d85ac7d0777fcab', 'opcodes': ['JUMPDEST', 'PUSH1', 'OP_90', 'OP_81', 'MUL', 'OP_90', 'OP_91', 'ADD', 'OP_81', 'ADD', 'MLOAD', 'PUSH1', 'OP_80', 'MLOAD', 'PUSH1', 'OP_80', 'OP_82', 'MSTORE', 'OP_81', 'OP_85', 'ADD', 'OP_80', 'OP_84', 'MSTORE', 'OP_97', 'OP_90', 'OP_97', 'MSTORE', 'PUSH1', 'OP_90', 'OP_95', 'AND', 'OP_85', 'OP_82', 'ADD', 'MSTORE', 'PUSH1', 'OP_85', 'ADD', 'OP_93', 'OP_90', 'OP_93', 'MSTORE', 'PUSH1', 'OP_84', 'ADD', 'MSTORE', 'OP_90', 'MLOAD', 'PUSH1', 'OP_80', 'OP_84', 'ADD', 'OP_94', 'OP_92', 'OP_93', 'PUSH1', 'NOT', 'OP_83', 'ADD', 'OP_93', 'OP_90', 'OP_83', 'OP_90', 'SUB', 'OP_90', 'OP_91', 'ADD', 'OP_91', 'OP_90', 'OP_86', 'GAS', 'CALL', 'ISZERO', 'OP_80', 'ISZERO', 'PUSH2', 'JUMPI'], 'start_pc': 891}
thinking
**Analyzing call success check**
The code uses double ISZERO after CALL, likely to verify call success and trigger a revert on failure, so I'll inspect the next block to confirm the revert handling.
exec
/bin/bash -lc "python - <<'PY'
import json
p='/tmp/codex-pt6tfdez/BYTECODE_BUNDLE.json'
with open(p) as f:
data=json.load(f)
blocks=data['analysis_artifact']['artifact_json']['basic_blocks']
for b in blocks:
if b['start_pc']==979:
print(b)
PY" in /tmp/codex-pt6tfdez succeeded in 28ms:
{'end_pc': 987, 'hash': '0xbdb03bc5732ac2b246bfba0a30b4910cbc8ff20bc57f4f7135bea8d234f87637', 'opcodes': ['RETURNDATASIZE', 'PUSH1', 'OP_80', 'RETURNDATACOPY', 'RETURNDATASIZE', 'PUSH1', 'REVERT'], 'start_pc': 979}
thinking
**Analyzing call target ambiguity**
Noticed the call success is verified but return data might not be checked for ERC20; considering parsing calldata to identify call target, possibly involving aggregator or multicall patterns within a block spanning specific PCs.
exec
/bin/bash -lc "python - <<'PY'
import json
p='/tmp/codex-pt6tfdez/BYTECODE_BUNDLE.json'
with open(p) as f:
data=json.load(f)
blocks=data['analysis_artifact']['artifact_json']['basic_blocks']
for b in blocks:
if b['start_pc']==1084:
print(b)
PY" in /tmp/codex-pt6tfdez succeeded in 26ms:
{'end_pc': 1117, 'hash': '0xc4281bcbf77bc7efb6f36ac7e0dff05240f5de49337d606a3a1aaa1172f5a08a', 'opcodes': ['JUMPDEST', 'POP', 'PUSH1', 'OP_80', 'SLOAD', 'PUSH1', 'ADD', 'OP_81', 'SSTORE', 'OP_85', 'MLOAD', 'OP_81', 'OP_90', 'OP_81', 'OP_90', 'PUSH1', 'OP_89', 'ADD', 'OP_8A', 'OP_8C', 'GAS', 'CALL', 'OP_90', 'POP', 'OP_80', 'ISZERO', 'ISZERO', 'PUSH2', 'JUMPI'], 'start_pc': 1084}
thinking
**Analyzing potential reentrancy and dispatch functions**
Noted a state update before an external call that may indicate reentrancy concerns; next, I'll identify call targets and decode function selectors from dispatch logic to classify functions and check access controls. I'll also scan stored data and storage slots in the JSON for relevant evidence.
exec
/bin/bash -lc 'rg -n "storage|slot|slots" BYTECODE_BUNDLE.json' in /tmp/codex-pt6tfdez succeeded in 7ms:
1619: "storage": {
1621: "slots": [
1625: "slot": "0x0000000000000000000000000000000000000000000000000000000000000001"
1630: "slot": "0x0000000000000000000000000000000000000000000000000000000000000003"
1635: "slot": "0x0000000000000000000000000000000000000000000000000000000000000000"
1640: "slot": "0x0000000000000000000000000000000000000000000000000000000000000001"
1645: "slot": "0x0000000000000000000000000000000000000000000000000000000000000000"
1650: "slot": "0x0000000000000000000000000000000000000000000000000000000000000001"
1655: "slot": "0x0000000000000000000000000000000000000000000000000000000000000000"
1673: "storage": {
1675: "slots": [
1679: "slot": "0x0000000000000000000000000000000000000000000000000000000000000001"
1684: "slot": "0x0000000000000000000000000000000000000000000000000000000000000003"
1689: "slot": "0x0000000000000000000000000000000000000000000000000000000000000000"
1694: "slot": "0x0000000000000000000000000000000000000000000000000000000000000001"
1699: "slot": "0x0000000000000000000000000000000000000000000000000000000000000000"
1704: "slot": "0x0000000000000000000000000000000000000000000000000000000000000001"
1709: "slot": "0x0000000000000000000000000000000000000000000000000000000000000000"
1727: "storage": {
1729: "slots": [
thinking
**Inspecting storage details**
I'm preparing to parse the storage section with Python to uncover relevant evidence and understand how storage is handled.
exec
/bin/bash -lc "python - <<'PY'
import json
p='/tmp/codex-pt6tfdez/BYTECODE_BUNDLE.json'
with open(p) as f:
data=json.load(f)
# find storage summary top-level maybe
for k,v in data.items():
if k=='storage':
print('top-level storage', v)
# maybe in evidence bundle? search keys containing 'storage'
def find_storage(obj,path=''):
if isinstance(obj,dict):
for k,v in obj.items():
if k=='storage':
print('found storage at', path)
print(v)
else:
find_storage(v, path+'/'+k)
elif isinstance(obj,list):
for i,v in enumerate(obj):
find_storage(v, path+f'[{i}]')
find_storage(data)
PY" in /tmp/codex-pt6tfdez succeeded in 33ms:
found storage at /analysis_artifact/artifact_json/functions[0]
{'reads': 9, 'slots': [{'op': 'SLOAD', 'pc': 497, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 504, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000003'}, {'op': 'SLOAD', 'pc': 543, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}, {'op': 'SLOAD', 'pc': 557, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 604, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}, {'op': 'SLOAD', 'pc': 819, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 1089, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}], 'writes': 1}
found storage at /analysis_artifact/artifact_json/functions[1]
{'reads': 9, 'slots': [{'op': 'SLOAD', 'pc': 497, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 504, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000003'}, {'op': 'SLOAD', 'pc': 543, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}, {'op': 'SLOAD', 'pc': 557, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 604, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}, {'op': 'SLOAD', 'pc': 819, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 1089, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}], 'writes': 1}
found storage at /analysis_artifact/artifact_json/functions[2]
{'reads': 9, 'slots': [{'op': 'SLOAD', 'pc': 497, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 504, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000003'}, {'op': 'SLOAD', 'pc': 543, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}, {'op': 'SLOAD', 'pc': 557, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 604, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}, {'op': 'SLOAD', 'pc': 819, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 1089, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}], 'writes': 1}
found storage at /analysis_artifact/artifact_json/functions[3]
{'reads': 9, 'slots': [{'op': 'SLOAD', 'pc': 497, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 504, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000003'}, {'op': 'SLOAD', 'pc': 543, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}, {'op': 'SLOAD', 'pc': 557, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 604, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}, {'op': 'SLOAD', 'pc': 819, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 1089, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}], 'writes': 1}
found storage at /analysis_artifact/artifact_json
{'keccak_count': 4, 'reads': 9, 'slots': [{'op': 'SLOAD', 'pc': 497, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 504, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000003'}, {'op': 'SLOAD', 'pc': 543, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}, {'op': 'SLOAD', 'pc': 557, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 604, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}, {'op': 'SLOAD', 'pc': 819, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 1089, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}], 'writes': 1}
thinking
**Inspecting artifact_json functions array**
exec
/bin/bash -lc "python - <<'PY'
import json
p='/tmp/codex-pt6tfdez/BYTECODE_BUNDLE.json'
with open(p) as f:
data=json.load(f)
funcs=data['analysis_artifact']['artifact_json'].get('functions',[])
print('functions len',len(funcs))
for i,f in enumerate(funcs):
print('\\nfunc',i, {k:f[k] for k in f if k in ('selector','entry_pc','name','visibility','mutability','auth')})
print('storage', f.get('storage'))
print('external_calls', f.get('external_calls'))
PY" in /tmp/codex-pt6tfdez succeeded in 32ms:
functions len 4
func 0 {'auth': {'guards': []}, 'entry_pc': None, 'selector': '0x42cde4e8'}
storage {'reads': 9, 'slots': [{'op': 'SLOAD', 'pc': 497, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 504, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000003'}, {'op': 'SLOAD', 'pc': 543, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}, {'op': 'SLOAD', 'pc': 557, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 604, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}, {'op': 'SLOAD', 'pc': 819, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 1089, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}], 'writes': 1}
external_calls None
func 1 {'auth': {'guards': []}, 'entry_pc': 2952712416, 'selector': '0xaa5df9e2'}
storage {'reads': 9, 'slots': [{'op': 'SLOAD', 'pc': 497, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 504, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000003'}, {'op': 'SLOAD', 'pc': 543, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}, {'op': 'SLOAD', 'pc': 557, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 604, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}, {'op': 'SLOAD', 'pc': 819, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 1089, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}], 'writes': 1}
external_calls None
func 2 {'auth': {'guards': []}, 'entry_pc': 4046272847, 'selector': '0xaffed0e0'}
storage {'reads': 9, 'slots': [{'op': 'SLOAD', 'pc': 497, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 504, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000003'}, {'op': 'SLOAD', 'pc': 543, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}, {'op': 'SLOAD', 'pc': 557, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 604, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}, {'op': 'SLOAD', 'pc': 819, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 1089, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}], 'writes': 1}
external_calls None
func 3 {'auth': {'guards': []}, 'entry_pc': None, 'selector': '0xf12d394f'}
storage {'reads': 9, 'slots': [{'op': 'SLOAD', 'pc': 497, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 504, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000003'}, {'op': 'SLOAD', 'pc': 543, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}, {'op': 'SLOAD', 'pc': 557, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 604, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}, {'op': 'SLOAD', 'pc': 819, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000001'}, {'op': 'SLOAD', 'pc': 1089, 'slot': '0x0000000000000000000000000000000000000000000000000000000000000000'}], 'writes': 1}
external_calls None
thinking
**Analyzing function entry addresses and callsites**
Function entry PCs appear invalid or out of code range, likely due to obfuscation or mapping errors, so I'll focus on bytecode evidence. Two callsites exist at PCs 971 and 1108 needing access control analysis, noting no explicit auth guards detected but remaining cautious. Next, I'll check the artifact JSON for callsites or call target details to clarify external call paths.
exec
/bin/bash -lc "python - <<'PY'
import json
p='/tmp/codex-pt6tfdez/BYTECODE_BUNDLE.json'
with open(p) as f:
data=json.load(f)
# find keys containing 'call' or 'calls'
def find_keys(obj, path=''):
if isinstance(obj, dict):
for k,v in obj.items():
if 'call' in k:
if path.count('/')<4:
print(path, k)
find_keys(v, path+'/'+k)
elif isinstance(obj, list):
for i,v in enumerate(obj):
find_keys(v, path+f'[{i}]')
find_keys(data)
PY" in /tmp/codex-pt6tfdez succeeded in 39ms:
/analysis_artifact/artifact_json callsites
/analysis_artifact/artifact_json/sinks call
/analysis_artifact/artifact_json/sinks delegatecall
/analysis_artifact/artifact_json/sinks staticcall
/detector_findings[0]/evidence_json call_count
/detector_findings[0]/evidence_json untrusted_call_count
/detector_findings[0]/validation_json call_targets
/detector_findings[1]/evidence_json eth_value_calls
/detector_findings[1]/validation_json call_targets
/heuristics_summary delegatecall_count
thinking
**Inspecting callsites list**
exec
/bin/bash -lc "python - <<'PY'
import json
p='/tmp/codex-pt6tfdez/BYTECODE_BUNDLE.json'
with open(p) as f:
data=json.load(f)
cs=data['analysis_artifact']['artifact_json'].get('callsites')
print('callsites',cs)
PY" in /tmp/codex-pt6tfdez succeeded in 28ms:
callsites [{'opcode': 'CALL', 'pc': 971, 'returndata_checked': None, 'target_expression_category': 'computed', 'value_expression_category': 'computed'}, {'opcode': 'CALL', 'pc': 1108, 'returndata_checked': None, 'target_expression_category': 'computed', 'value_expression_category': 'computed'}]
thinking
**Analyzing self-call implications**
The call appears to target the contract itself with a constant address, conflicting with the untrusted call detector triggered by computed calls. This suggests the call is external but to self, which can enable reentrancy within the same contract context despite being a self-call, potentially affecting state or triggering fallback logic.
thinking
**Interpreting call success handling**
The call result is checked via stack ops after CALL, with a swap and double ISZERO pattern suggesting success verification, but no clear revert on failure is present. This implies the contract may ignore call failures or handle them non-revertingly, affecting how reentrancy or value transfer risks are assessed.
exec
/bin/bash -lc "python - <<'PY'
import json
p='/tmp/codex-pt6tfdez/BYTECODE_BUNDLE.json'
with open(p) as f:
data=json.load(f)
blocks=data['analysis_artifact']['artifact_json']['basic_blocks']
for b in blocks:
if b['start_pc'] in (1118,1122,1136,1146,1157):
print(b['start_pc'], b)
PY" in /tmp/codex-pt6tfdez succeeded in 29ms:
1118 {'end_pc': 1121, 'hash': '0x9100e3787343fb44edd1ab90f8209c56f81504f8910a3df0be4c0bea977b119d', 'opcodes': ['PUSH1', 'OP_80', 'REVERT'], 'start_pc': 1118}
1122 {'end_pc': 1134, 'hash': '0xcb960136f7250da09f9c5db631d13376ec221c622010138395384d9afded79cb', 'opcodes': ['JUMPDEST', 'POP', 'POP', 'POP', 'POP', 'POP', 'POP', 'POP', 'POP', 'POP', 'POP', 'POP', 'JUMP'], 'start_pc': 1122}
1136 {'end_pc': 1145, 'hash': '0xd60be06b06a837d443a1d76412e8c8d27d6a0890aff344e92e9742cc8b4116e8', 'opcodes': ['OP_A1', 'PUSH6', 'SHA3', 'JUMP'], 'start_pc': 1136}
1146 {'end_pc': 1156, 'hash': '0xf31e3253df7054cafbca7864ab5d1ea234e7c1f5a8f62d9d7e98908e3564e073', 'opcodes': ['OP_D4', 'OP_AD', 'TIMESTAMP', 'OP_D1', 'OP_2F', 'OP_A9', 'OP_D7', 'BLOCKHASH', 'OP_B1', 'OP_B0', 'JUMPI'], 'start_pc': 1146}
1157 {'end_pc': 1173, 'hash': '0x88266d71dc959b0959e3b6235d25ee5192908f4840eff8e19d1fdf07504702a2', 'opcodes': ['OP_B5', 'MSTORE', 'MSTORE8', 'PUSH12', 'PUSH11'], 'start_pc': 1157}
thinking
**Analyzing low-level calls and revert logic**
The calls check success without return data, with likely revert on failure, suggesting generic low-level calls. The target address might be constant but uncertain if it’s external or the contract itself, so marking risk medium for now; reconstructing call parameters and stack order will clarify this next.
thinking
**Identifying potential arbitrary external call with value**
The contract makes external calls with computed targets and value without detected access control or reentrancy guards, posing a medium-risk arbitrary call vulnerability if exposed. Missing ERC20 return data checks also appear but represent low severity without more context.
exec
/bin/bash -lc "python - <<'PY'
import json
p='/tmp/codex-pt6tfdez/BYTECODE_BUNDLE.json'
with open(p) as f:
data=json.load(f)
print(data.keys())
PY" in /tmp/codex-pt6tfdez succeeded in 49ms:
dict_keys(['analysis_artifact', 'analysis_run', 'artifact', 'capability_graph', 'detector_findings', 'heuristics_summary'])
thinking
**Starting domain data inspection**
exec
/bin/bash -lc "python - <<'PY'
import json, textwrap
p='/tmp/codex-pt6tfdez/BYTECODE_BUNDLE.json'
with open(p) as f:
data=json.load(f)
print('analysis_run keys', data['analysis_run'].keys())
print('artifact keys', data['artifact'].keys())
print('capability_graph keys', data['capability_graph'].keys())
PY" in /tmp/codex-pt6tfdez succeeded in 31ms:
analysis_run keys dict_keys(['address', 'block_number', 'chain_id', 'child_links', 'created_at', 'id', 'parent_links', 'status', 'updated_at'])
artifact keys dict_keys(['codehash', 'compiler_json', 'implementation_address', 'is_proxy', 'runtime_bytecode', 'verified_source'])
capability_graph keys dict_keys(['address', 'block_number', 'chain_id', 'codehash', 'created_at', 'graph_hash', 'graph_json', 'id', 'updated_at', 'version'])
thinking
**Inspecting graph_json structure**
I'm checking the keys and contents of graph_json to see if it overlaps with analysis_artifact's artifact_json or includes call paths relevant for the implementation.
exec
/bin/bash -lc "python - <<'PY'
import json
p='/tmp/codex-pt6tfdez/BYTECODE_BUNDLE.json'
with open(p) as f:
data=json.load(f)
g=data['capability_graph']['graph_json']
print(g.keys())
print('nodes', len(g.get('nodes',[])), 'edges', len(g.get('edges',[])))
PY" in /tmp/codex-pt6tfdez succeeded in 26ms:
dict_keys(['edges', 'nodes', 'version'])
nodes 63 edges 60
thinking
**Confirming artifact proxy attribute**
I'm verifying if the top-level artifact object includes a proxy indicator like `is_proxy` to decide how it aligns with graph_json and its contents.
exec
/bin/bash -lc "python - <<'PY'
import json
p='/tmp/codex-pt6tfdez/BYTECODE_BUNDLE.json'
with open(p) as f:
data=json.load(f)
print('is_proxy', data['artifact'].get('is_proxy'))
print('implementation_address', data['artifact'].get('implementation_address'))
PY" in /tmp/codex-pt6tfdez succeeded in 30ms:
is_proxy False
implementation_address None
thinking
**Identifying reentrancy risk around external calls**
I'm focusing on detecting low-level external calls with computed targets/values that might enable arbitrary calls or reentrancy, especially checking if state updates (SSTORE) happen after such calls within certain bytecode blocks to clarify the risk.
exec
/bin/bash -lc "python - <<'PY'
import json
p='/tmp/codex-pt6tfdez/BYTECODE_BUNDLE.json'
with open(p) as f:
data=json.load(f)
blocks=data['analysis_artifact']['artifact_json']['basic_blocks']
for b in blocks:
if 'SSTORE' in b['opcodes']:
print(b['start_pc'], b['opcodes'])
PY" in /tmp/codex-pt6tfdez succeeded in 28ms:
1084 ['JUMPDEST', 'POP', 'PUSH1', 'OP_80', 'SLOAD', 'PUSH1', 'ADD', 'OP_81', 'SSTORE', 'OP_85', 'MLOAD', 'OP_81', 'OP_90', 'OP_81', 'OP_90', 'PUSH1', 'OP_89', 'ADD', 'OP_8A', 'OP_8C', 'GAS', 'CALL', 'OP_90', 'POP', 'OP_80', 'ISZERO', 'ISZERO', 'PUSH2', 'JUMPI']
thinking
**Assessing nuanced reentrancy risk**
The external call occurs before a state update, which may reduce reentrancy risk, but the lack of detected reentrancy guards and unchecked return data on the possibly arbitrary external call still suggests caution.
thinking
**Identifying multicall structure and access checks**
The contract appears to implement a multicall pattern with calldata parsing loops, likely executing calls inside a loop. Initial findings suggest an access control check around certain blocks may verify the caller’s authorization before processing these calls.
exec
/bin/bash -lc "python - <<'PY'
import json
p='/tmp/codex-pt6tfdez/BYTECODE_BUNDLE.json'
with open(p) as f:
data=json.load(f)
blocks=data['analysis_artifact']['artifact_json']['basic_blocks']
for b in blocks:
if b['start_pc'] in (494,500,514,540,546,571,583,589,596,600):
print('\\n',b['start_pc'], b['opcodes'])
PY" in /tmp/codex-pt6tfdez succeeded in 25ms:
494 ['JUMPDEST', 'PUSH1', 'SLOAD', 'OP_81', 'JUMP']
500 ['JUMPDEST', 'PUSH1', 'OP_80', 'SLOAD', 'OP_82', 'OP_90', 'OP_81', 'LT', 'PUSH2', 'JUMPI']
514 ['JUMPDEST', 'PUSH1', 'OP_91', 'OP_82', 'MSTORE', 'PUSH1', 'OP_90', 'OP_91', 'SHA3', 'ADD', 'SLOAD', 'PUSH1', 'PUSH1', 'PUSH1', 'EXP', 'SUB', 'AND', 'OP_90', 'POP', 'OP_81', 'JUMP']
540 ['JUMPDEST', 'PUSH1', 'SLOAD', 'OP_81', 'JUMP']
546 ['JUMPDEST', 'PUSH1', 'OP_80', 'PUSH1', 'OP_80', 'PUSH1', 'PUSH1', 'SLOAD', 'OP_8A', 'MLOAD', 'EQ', 'ISZERO', 'ISZERO', 'PUSH2', 'JUMPI']
571 ['JUMPDEST', 'OP_88', 'MLOAD', 'OP_8A', 'MLOAD', 'EQ', 'OP_80', 'ISZERO', 'PUSH2', 'JUMPI']
583 ['POP', 'OP_8A', 'MLOAD', 'OP_8A', 'MLOAD', 'EQ']
589 ['JUMPDEST', 'ISZERO', 'ISZERO', 'PUSH2', 'JUMPI']
596 ['PUSH1', 'OP_80', 'REVERT']
600 ['JUMPDEST', 'PUSH1', 'OP_80', 'SLOAD', 'PUSH1', 'MLOAD', 'PUSH32', 'OP_80', 'OP_82', 'MSTORE', 'PUSH1', 'OP_82', 'ADD', 'OP_84', 'OP_90', 'MSTORE', 'ADDRESS', 'PUSH13', 'OP_81', 'OP_81', 'MUL', 'PUSH1', 'OP_85', 'ADD', 'MSTORE', 'PUSH1', 'PUSH1', 'PUSH1', 'EXP', 'SUB', 'OP_8E', 'AND', 'MUL', 'PUSH1', 'OP_84', 'ADD', 'MSTORE', 'PUSH1', 'OP_83', 'ADD', 'OP_8C', 'OP_90', 'MSTORE', 'OP_8A', 'MLOAD', 'OP_91', 'OP_94', 'OP_93', 'OP_90', 'OP_92', 'OP_8D', 'OP_92', 'OP_8D', 'OP_92', 'OP_8D', 'OP_92', 'OP_90', 'OP_91', 'PUSH1', 'OP_82', 'ADD', 'OP_90', 'PUSH1', 'OP_85', 'ADD', 'OP_90', 'OP_80', 'OP_83', 'OP_83']
thinking
**Analyzing unclear access control check**
The access control check uses storage and memory loads with equality and jump instructions, without obvious CALLER usage, which may explain why heuristics miss it; next is to search for CALLER opcode usage in the code to confirm caller-based guards.
exec
/bin/bash -lc "python - <<'PY'
import json
p='/tmp/codex-pt6tfdez/BYTECODE_BUNDLE.json'
with open(p) as f:
data=json.load(f)
for b in data['analysis_artifact']['artifact_json']['basic_blocks']:
if 'CALLER' in b['opcodes']:
print('CALLER in block', b['start_pc'])
PY" in /tmp/codex-pt6tfdez succeeded in 24ms:
thinking
**Checking for tx.origin usage**
exec
/bin/bash -lc "python - <<'PY'
import json
p='/tmp/codex-pt6tfdez/BYTECODE_BUNDLE.json'
with open(p) as f:
data=json.load(f)
for b in data['analysis_artifact']['artifact_json']['basic_blocks']:
if 'ORIGIN' in b['opcodes']:
print('ORIGIN in block', b['start_pc'])
PY" in /tmp/codex-pt6tfdez succeeded in 27ms:
thinking
**Assessing access control absence**
No CALLER or ORIGIN usage implies no access control, allowing anyone to call functions; combined with CALL to precompiles and ability to send ETH out, this creates a significant risk of fund loss, marking severity as medium to high depending on intended permissioning.
thinking
**Confirming payable fallback and unprotected calls**
The contract’s fallback is effectively payable since calls with calldata under 4 bytes skip revert, allowing it to hold ETH. The two identified CALLs have computed targets and values with no usage of CALLER or ORIGIN for access control, implying anyone can trigger arbitrary external calls potentially draining contract ETH. Severity is marked medium due to some uncertainty if call targets are user-controlled, but the lack of on-chain sender checks strongly raises risk.
thinking
**Producing JSON audit summary**
Generating JSON with two findings: one medium-severity access control issue for arbitrary external calls with computed target/value but uncertain target control, and one low-severity issue for unchecked return data on low-level calls; both include callsite evidence and conservative recommendations.
codex
{"no_findings":false,"summary":"Bytecode shows two low-level CALL sites with computed target/value and no detected sender-based guards; return-data is not validated. Evidence is bytecode-only and the call target may be constant (self) per validation, so impact depends on how these entrypoints are used.","findings":[{"severity":"medium","category":"access_control","title":"Externally reachable CALL with computed target/value (possible arbitrary execution/ETH transfer)","exploit_scenario":"If these CALL parameters are influenced by calldata and the entrypoint is publicly callable, an attacker can direct the contract to call arbitrary targets with the contract’s ETH balance, potentially draining funds or abusing approvals. Validation hints the target might be constant (self), so confirm whether the target/value are actually user-controlled before relying on this risk assessment.","recommendation":"Restrict who can invoke the external-call path (e.g., owner/role checks) or require verifiable authorization (signatures). If this is intended to be an executor, add an allowlist for targets and cap ETH value; document the trust model explicitly.","evidence":"Both callsites are CALL with target/value marked as computed and no guards detected; no CALLER/ORIGIN opcodes observed. Detector flagged “Untrusted CALL target/value reachable” and “ETH value transfer possible.” Validation trace suggests a constant target equal to the contract address, so this may be a false positive if the target is not actually user-controlled.","locations":["pc:971","pc:1108"]},{"severity":"low","category":"other","title":"Return data not validated for low-level CALLs","exploit_scenario":"If these CALLs interact with ERC20-like tokens that return false without reverting, the contract may treat the call as successful even though the token action failed, leading to accounting inconsistencies or stuck funds. If the CALLs are arbitrary, this may be acceptable but should be explicit.","recommendation":"When expecting ERC20-style semantics, enforce `success && (returndata.length == 0 || abi.decode(returndata, (bool)) == true)` or use a well-tested safe-call helper.","evidence":"Callsites list `returndata_checked: null`; success is checked only via the CALL result, with no return-data decoding in the call blocks.","locations":["pc:971","pc:1108"]}]}
tokens used
52,309
{
"codex": {
"ran_at": "2026-01-22T07:36:24.644826+00:00",
"returncode": 0
},
"project": {
"mode": "bytecode",
"bytecode_length": 2360,
"bytecode_truncated": false,
"capability_graph_present": true,
"analysis_artifact_present": true
},
"summary": "Bytecode shows two low-level CALL sites with computed target/value and no detected sender-based guards; return-data is not validated. Evidence is bytecode-only and the call target may be constant (self) per validation, so impact depends on how these entrypoints are used.",
"raw_final": {
"summary": "Bytecode shows two low-level CALL sites with computed target/value and no detected sender-based guards; return-data is not validated. Evidence is bytecode-only and the call target may be constant (self) per validation, so impact depends on how these entrypoints are used.",
"findings": [
{
"title": "Externally reachable CALL with computed target/value (possible arbitrary execution/ETH transfer)",
"category": "access_control",
"evidence": "Both callsites are CALL with target/value marked as computed and no guards detected; no CALLER/ORIGIN opcodes observed. Detector flagged \u201cUntrusted CALL target/value reachable\u201d and \u201cETH value transfer possible.\u201d Validation trace suggests a constant target equal to the contract address, so this may be a false positive if the target is not actually user-controlled.",
"severity": "medium",
"locations": [
"pc:971",
"pc:1108"
],
"recommendation": "Restrict who can invoke the external-call path (e.g., owner/role checks) or require verifiable authorization (signatures). If this is intended to be an executor, add an allowlist for targets and cap ETH value; document the trust model explicitly.",
"exploit_scenario": "If these CALL parameters are influenced by calldata and the entrypoint is publicly callable, an attacker can direct the contract to call arbitrary targets with the contract\u2019s ETH balance, potentially draining funds or abusing approvals. Validation hints the target might be constant (self), so confirm whether the target/value are actually user-controlled before relying on this risk assessment."
},
{
"title": "Return data not validated for low-level CALLs",
"category": "other",
"evidence": "Callsites list `returndata_checked: null`; success is checked only via the CALL result, with no return-data decoding in the call blocks.",
"severity": "low",
"locations": [
"pc:971",
"pc:1108"
],
"recommendation": "When expecting ERC20-style semantics, enforce `success && (returndata.length == 0 || abi.decode(returndata, (bool)) == true)` or use a well-tested safe-call helper.",
"exploit_scenario": "If these CALLs interact with ERC20-like tokens that return false without reverting, the contract may treat the call as successful even though the token action failed, leading to accounting inconsistencies or stuck funds. If the CALLs are arbitrary, this may be acceptable but should be explicit."
}
],
"no_findings": false
},
"no_findings": false,
"schema_version": 1
}
00000000: PUSH1 0x80 00000002: PUSH1 0x40 00000004: MSTORE 00000005: PUSH1 0x04 00000007: CALLDATASIZE 00000008: LT 00000009: PUSH2 0x0061 0000000c: JUMPI 0000000d: PUSH4 0xffffffff 00000012: PUSH29 0x0100000000000000000000000000000000000000000000000000000000 00000030: PUSH1 0x00 00000032: CALLDATALOAD 00000033: DIV 00000034: AND 00000035: PUSH4 0x42cde4e8 0000003a: DUP2 0000003b: EQ 0000003c: PUSH2 0x0063 0000003f: JUMPI 00000040: DUP1 00000041: PUSH4 0xaa5df9e2 00000046: EQ 00000047: PUSH2 0x008a 0000004a: JUMPI 0000004b: DUP1 0000004c: PUSH4 0xaffed0e0 00000051: EQ 00000052: PUSH2 0x00be 00000055: JUMPI 00000056: DUP1 00000057: PUSH4 0xf12d394f 0000005c: EQ 0000005d: PUSH2 0x00d3 00000060: JUMPI 00000061: JUMPDEST 00000062: STOP 00000063: JUMPDEST 00000064: CALLVALUE 00000065: DUP1 00000066: ISZERO 00000067: PUSH2 0x006f 0000006a: JUMPI 0000006b: PUSH1 0x00 0000006d: DUP1 0000006e: REVERT 0000006f: JUMPDEST 00000070: POP 00000071: PUSH2 0x0078 00000074: PUSH2 0x01ee 00000077: JUMP 00000078: JUMPDEST 00000079: PUSH1 0x40 0000007b: DUP1 0000007c: MLOAD 0000007d: SWAP2 0000007e: DUP3 0000007f: MSTORE 00000080: MLOAD 00000081: SWAP1 00000082: DUP2 00000083: SWAP1 00000084: SUB 00000085: PUSH1 0x20 00000087: ADD 00000088: SWAP1 00000089: RETURN 0000008a: JUMPDEST 0000008b: CALLVALUE 0000008c: DUP1 0000008d: ISZERO 0000008e: PUSH2 0x0096 00000091: JUMPI 00000092: PUSH1 0x00 00000094: DUP1 00000095: REVERT 00000096: JUMPDEST 00000097: POP 00000098: PUSH2 0x00a2 0000009b: PUSH1 0x04 0000009d: CALLDATALOAD 0000009e: PUSH2 0x01f4 000000a1: JUMP 000000a2: JUMPDEST 000000a3: PUSH1 0x40 000000a5: DUP1 000000a6: MLOAD 000000a7: PUSH1 0x01 000000a9: PUSH1 0xa0 000000ab: PUSH1 0x02 000000ad: EXP 000000ae: SUB 000000af: SWAP1 000000b0: SWAP3 000000b1: AND 000000b2: DUP3 000000b3: MSTORE 000000b4: MLOAD 000000b5: SWAP1 000000b6: DUP2 000000b7: SWAP1 000000b8: SUB 000000b9: PUSH1 0x20 000000bb: ADD 000000bc: SWAP1 000000bd: RETURN 000000be: JUMPDEST 000000bf: CALLVALUE 000000c0: DUP1 000000c1: ISZERO 000000c2: PUSH2 0x00ca 000000c5: JUMPI 000000c6: PUSH1 0x00 000000c8: DUP1 000000c9: REVERT 000000ca: JUMPDEST 000000cb: POP 000000cc: PUSH2 0x0078 000000cf: PUSH2 0x021c 000000d2: JUMP 000000d3: JUMPDEST 000000d4: CALLVALUE 000000d5: DUP1 000000d6: ISZERO 000000d7: PUSH2 0x00df 000000da: JUMPI 000000db: PUSH1 0x00 000000dd: DUP1 000000de: REVERT 000000df: JUMPDEST 000000e0: POP 000000e1: PUSH1 0x40 000000e3: DUP1 000000e4: MLOAD 000000e5: PUSH1 0x20 000000e7: PUSH1 0x04 000000e9: DUP1 000000ea: CALLDATALOAD 000000eb: DUP1 000000ec: DUP3 000000ed: ADD 000000ee: CALLDATALOAD 000000ef: DUP4 000000f0: DUP2 000000f1: MUL 000000f2: DUP1 000000f3: DUP7 000000f4: ADD 000000f5: DUP6 000000f6: ADD 000000f7: SWAP1 000000f8: SWAP7 000000f9: MSTORE 000000fa: DUP1 000000fb: DUP6 000000fc: MSTORE 000000fd: PUSH2 0x0061 00000100: SWAP6 00000101: CALLDATASIZE 00000102: SWAP6 00000103: SWAP4 00000104: SWAP5 00000105: PUSH1 0x24 00000107: SWAP5 00000108: SWAP4 00000109: DUP6 0000010a: ADD 0000010b: SWAP3 0000010c: SWAP2 0000010d: DUP3 0000010e: SWAP2 0000010f: DUP6 00000110: ADD 00000111: SWAP1 00000112: DUP5 00000113: SWAP1 00000114: DUP1 00000115: DUP3 00000116: DUP5 00000117: CALLDATACOPY 00000118: POP 00000119: POP 0000011a: PUSH1 0x40 0000011c: DUP1 0000011d: MLOAD 0000011e: DUP8 0000011f: CALLDATALOAD 00000120: DUP10 00000121: ADD 00000122: DUP1 00000123: CALLDATALOAD 00000124: PUSH1 0x20 00000126: DUP2 00000127: DUP2 00000128: MUL 00000129: DUP5 0000012a: DUP2 0000012b: ADD 0000012c: DUP3 0000012d: ADD 0000012e: SWAP1 0000012f: SWAP6 00000130: MSTORE 00000131: DUP2 00000132: DUP5 00000133: MSTORE 00000134: SWAP9 00000135: SWAP12 00000136: SWAP11 00000137: SWAP10 00000138: DUP10 00000139: ADD 0000013a: SWAP9 0000013b: SWAP3 0000013c: SWAP8 0000013d: POP 0000013e: SWAP1 0000013f: DUP3 00000140: ADD 00000141: SWAP6 00000142: POP 00000143: SWAP4 00000144: POP 00000145: DUP4 00000146: SWAP3 00000147: POP 00000148: DUP6 00000149: ADD 0000014a: SWAP1 0000014b: DUP5 0000014c: SWAP1 0000014d: DUP1 0000014e: DUP3 0000014f: DUP5 00000150: CALLDATACOPY 00000151: POP 00000152: POP 00000153: PUSH1 0x40 00000155: DUP1 00000156: MLOAD 00000157: DUP8 00000158: CALLDATALOAD 00000159: DUP10 0000015a: ADD 0000015b: DUP1 0000015c: CALLDATALOAD 0000015d: PUSH1 0x20 0000015f: DUP2 00000160: DUP2 00000161: MUL 00000162: DUP5 00000163: DUP2 00000164: ADD 00000165: DUP3 00000166: ADD 00000167: SWAP1 00000168: SWAP6 00000169: MSTORE 0000016a: DUP2 0000016b: DUP5 0000016c: MSTORE 0000016d: SWAP9 0000016e: SWAP12 0000016f: SWAP11 00000170: SWAP10 00000171: DUP10 00000172: ADD 00000173: SWAP9 00000174: SWAP3 00000175: SWAP8 00000176: POP 00000177: SWAP1 00000178: DUP3 00000179: ADD 0000017a: SWAP6 0000017b: POP 0000017c: SWAP4 0000017d: POP 0000017e: DUP4 0000017f: SWAP3 00000180: POP 00000181: DUP6 00000182: ADD 00000183: SWAP1 00000184: DUP5 00000185: SWAP1 00000186: DUP1 00000187: DUP3 00000188: DUP5 00000189: CALLDATACOPY 0000018a: POP 0000018b: POP 0000018c: PUSH1 0x40 0000018e: DUP1 0000018f: MLOAD 00000190: PUSH1 0x20 00000192: DUP9 00000193: DUP4 00000194: ADD 00000195: CALLDATALOAD 00000196: DUP11 00000197: ADD 00000198: DUP1 00000199: CALLDATALOAD 0000019a: PUSH1 0x1f 0000019c: DUP2 0000019d: ADD 0000019e: DUP4 0000019f: SWAP1 000001a0: DIV 000001a1: DUP4 000001a2: MUL 000001a3: DUP5 000001a4: ADD 000001a5: DUP4 000001a6: ADD 000001a7: SWAP1 000001a8: SWAP5 000001a9: MSTORE 000001aa: DUP4 000001ab: DUP4 000001ac: MSTORE 000001ad: SWAP8 000001ae: SWAP11 000001af: DUP10 000001b0: CALLDATALOAD 000001b1: PUSH1 0x01 000001b3: PUSH1 0xa0 000001b5: PUSH1 0x02 000001b7: EXP 000001b8: SUB 000001b9: AND 000001ba: SWAP11 000001bb: DUP11 000001bc: DUP4 000001bd: ADD 000001be: CALLDATALOAD 000001bf: SWAP11 000001c0: SWAP2 000001c1: SWAP10 000001c2: SWAP1 000001c3: SWAP9 000001c4: POP 000001c5: PUSH1 0x60 000001c7: SWAP1 000001c8: SWAP2 000001c9: ADD 000001ca: SWAP7 000001cb: POP 000001cc: SWAP2 000001cd: SWAP5 000001ce: POP 000001cf: SWAP1 000001d0: DUP2 000001d1: ADD 000001d2: SWAP3 000001d3: POP 000001d4: DUP2 000001d5: SWAP1 000001d6: DUP5 000001d7: ADD 000001d8: DUP4 000001d9: DUP3 000001da: DUP1 000001db: DUP3 000001dc: DUP5 000001dd: CALLDATACOPY 000001de: POP 000001df: SWAP5 000001e0: SWAP8 000001e1: POP 000001e2: PUSH2 0x0222 000001e5: SWAP7 000001e6: POP 000001e7: POP 000001e8: POP 000001e9: POP 000001ea: POP 000001eb: POP 000001ec: POP 000001ed: JUMP 000001ee: JUMPDEST 000001ef: PUSH1 0x01 000001f1: SLOAD 000001f2: DUP2 000001f3: JUMP 000001f4: JUMPDEST 000001f5: PUSH1 0x03 000001f7: DUP1 000001f8: SLOAD 000001f9: DUP3 000001fa: SWAP1 000001fb: DUP2 000001fc: LT 000001fd: PUSH2 0x0202 00000200: JUMPI 00000201: INVALID 00000202: JUMPDEST 00000203: PUSH1 0x00 00000205: SWAP2 00000206: DUP3 00000207: MSTORE 00000208: PUSH1 0x20 0000020a: SWAP1 0000020b: SWAP2 0000020c: KECCAK256 0000020d: ADD 0000020e: SLOAD 0000020f: PUSH1 0x01 00000211: PUSH1 0xa0 00000213: PUSH1 0x02 00000215: EXP 00000216: SUB 00000217: AND 00000218: SWAP1 00000219: POP 0000021a: DUP2 0000021b: JUMP 0000021c: JUMPDEST 0000021d: PUSH1 0x00 0000021f: SLOAD 00000220: DUP2 00000221: JUMP 00000222: JUMPDEST 00000223: PUSH1 0x00 00000225: DUP1 00000226: PUSH1 0x00 00000228: DUP1 00000229: PUSH1 0x00 0000022b: PUSH1 0x01 0000022d: SLOAD 0000022e: DUP11 0000022f: MLOAD 00000230: EQ 00000231: ISZERO 00000232: ISZERO 00000233: PUSH2 0x023b 00000236: JUMPI 00000237: PUSH1 0x00 00000239: DUP1 0000023a: REVERT 0000023b: JUMPDEST 0000023c: DUP9 0000023d: MLOAD 0000023e: DUP11 0000023f: MLOAD 00000240: EQ 00000241: DUP1 00000242: ISZERO 00000243: PUSH2 0x024d 00000246: JUMPI 00000247: POP 00000248: DUP11 00000249: MLOAD 0000024a: DUP11 0000024b: MLOAD 0000024c: EQ 0000024d: JUMPDEST 0000024e: ISZERO 0000024f: ISZERO 00000250: PUSH2 0x0258 00000253: JUMPI 00000254: PUSH1 0x00 00000256: DUP1 00000257: REVERT 00000258: JUMPDEST 00000259: PUSH1 0x00 0000025b: DUP1 0000025c: SLOAD 0000025d: PUSH1 0x40 0000025f: MLOAD 00000260: PUSH32 0x1900000000000000000000000000000000000000000000000000000000000000 00000281: DUP1 00000282: DUP3 00000283: MSTORE 00000284: PUSH1 0x01 00000286: DUP3 00000287: ADD 00000288: DUP5 00000289: SWAP1 0000028a: MSTORE 0000028b: ADDRESS 0000028c: PUSH13 0x01000000000000000000000000 0000029a: DUP2 0000029b: DUP2 0000029c: MUL 0000029d: PUSH1 0x02 0000029f: DUP6 000002a0: ADD 000002a1: MSTORE 000002a2: PUSH1 0x01 000002a4: PUSH1 0xa0 000002a6: PUSH1 0x02 000002a8: EXP 000002a9: SUB 000002aa: DUP15 000002ab: AND 000002ac: MUL 000002ad: PUSH1 0x16 000002af: DUP5 000002b0: ADD 000002b1: MSTORE 000002b2: PUSH1 0x2a 000002b4: DUP4 000002b5: ADD 000002b6: DUP13 000002b7: SWAP1 000002b8: MSTORE 000002b9: DUP11 000002ba: MLOAD 000002bb: SWAP2 000002bc: SWAP5 000002bd: SWAP4 000002be: SWAP1 000002bf: SWAP3 000002c0: DUP14 000002c1: SWAP3 000002c2: DUP14 000002c3: SWAP3 000002c4: DUP14 000002c5: SWAP3 000002c6: SWAP1 000002c7: SWAP2 000002c8: PUSH1 0x4a 000002ca: DUP3 000002cb: ADD 000002cc: SWAP1 000002cd: PUSH1 0x20 000002cf: DUP6 000002d0: ADD 000002d1: SWAP1 000002d2: DUP1 000002d3: DUP4 000002d4: DUP4 000002d5: JUMPDEST 000002d6: PUSH1 0x20 000002d8: DUP4 000002d9: LT 000002da: PUSH2 0x02f4 000002dd: JUMPI 000002de: DUP1 000002df: MLOAD 000002e0: DUP3 000002e1: MSTORE 000002e2: PUSH1 0x1f 000002e4: NOT 000002e5: SWAP1 000002e6: SWAP3 000002e7: ADD 000002e8: SWAP2 000002e9: PUSH1 0x20 000002eb: SWAP2 000002ec: DUP3 000002ed: ADD 000002ee: SWAP2 000002ef: ADD 000002f0: PUSH2 0x02d5 000002f3: JUMP 000002f4: JUMPDEST 000002f5: MLOAD 000002f6: DUP2 000002f7: MLOAD 000002f8: PUSH1 0x20 000002fa: SWAP4 000002fb: DUP5 000002fc: SUB 000002fd: PUSH2 0x0100 00000300: EXP 00000301: PUSH1 0x00 00000303: NOT 00000304: ADD 00000305: DUP1 00000306: NOT 00000307: SWAP1 00000308: SWAP3 00000309: AND 0000030a: SWAP2 0000030b: AND 0000030c: OR 0000030d: SWAP1 0000030e: MSTORE 0000030f: SWAP3 00000310: ADD 00000311: SWAP4 00000312: DUP5 00000313: MSTORE 00000314: POP 00000315: PUSH1 0x40 00000317: MLOAD 00000318: SWAP3 00000319: DUP4 0000031a: SWAP1 0000031b: SUB 0000031c: ADD 0000031d: SWAP1 0000031e: SWAP2 0000031f: KECCAK256 00000320: SWAP12 00000321: POP 00000322: PUSH1 0x00 00000324: SWAP11 00000325: POP 00000326: DUP11 00000327: SWAP10 00000328: POP 00000329: POP 0000032a: POP 0000032b: POP 0000032c: POP 0000032d: POP 0000032e: POP 0000032f: POP 00000330: JUMPDEST 00000331: PUSH1 0x01 00000333: SLOAD 00000334: DUP4 00000335: LT 00000336: ISZERO 00000337: PUSH2 0x043c 0000033a: JUMPI 0000033b: PUSH1 0x01 0000033d: DUP6 0000033e: DUP13 0000033f: DUP6 00000340: DUP2 00000341: MLOAD 00000342: DUP2 00000343: LT 00000344: ISZERO 00000345: ISZERO 00000346: PUSH2 0x034b 00000349: JUMPI 0000034a: INVALID 0000034b: JUMPDEST 0000034c: SWAP1 0000034d: PUSH1 0x20 0000034f: ADD 00000350: SWAP1 00000351: PUSH1 0x20 00000353: MUL 00000354: ADD 00000355: MLOAD 00000356: DUP13 00000357: DUP7 00000358: DUP2 00000359: MLOAD 0000035a: DUP2 0000035b: LT 0000035c: ISZERO 0000035d: ISZERO 0000035e: PUSH2 0x0363 00000361: JUMPI 00000362: INVALID 00000363: JUMPDEST 00000364: SWAP1 00000365: PUSH1 0x20 00000367: ADD 00000368: SWAP1 00000369: PUSH1 0x20 0000036b: MUL 0000036c: ADD 0000036d: MLOAD 0000036e: DUP13 0000036f: DUP8 00000370: DUP2 00000371: MLOAD 00000372: DUP2 00000373: LT 00000374: ISZERO 00000375: ISZERO 00000376: PUSH2 0x037b 00000379: JUMPI 0000037a: INVALID 0000037b: JUMPDEST 0000037c: PUSH1 0x20 0000037e: SWAP1 0000037f: DUP2 00000380: MUL 00000381: SWAP1 00000382: SWAP2 00000383: ADD 00000384: DUP2 00000385: ADD 00000386: MLOAD 00000387: PUSH1 0x40 00000389: DUP1 0000038a: MLOAD 0000038b: PUSH1 0x00 0000038d: DUP1 0000038e: DUP3 0000038f: MSTORE 00000390: DUP2 00000391: DUP6 00000392: ADD 00000393: DUP1 00000394: DUP5 00000395: MSTORE 00000396: SWAP8 00000397: SWAP1 00000398: SWAP8 00000399: MSTORE 0000039a: PUSH1 0xff 0000039c: SWAP1 0000039d: SWAP6 0000039e: AND 0000039f: DUP6 000003a0: DUP3 000003a1: ADD 000003a2: MSTORE 000003a3: PUSH1 0x60 000003a5: DUP6 000003a6: ADD 000003a7: SWAP4 000003a8: SWAP1 000003a9: SWAP4 000003aa: MSTORE 000003ab: PUSH1 0x80 000003ad: DUP5 000003ae: ADD 000003af: MSTORE 000003b0: SWAP1 000003b1: MLOAD 000003b2: PUSH1 0xa0 000003b4: DUP1 000003b5: DUP5 000003b6: ADD 000003b7: SWAP5 000003b8: SWAP3 000003b9: SWAP4 000003ba: PUSH1 0x1f 000003bc: NOT 000003bd: DUP4 000003be: ADD 000003bf: SWAP4 000003c0: SWAP1 000003c1: DUP4 000003c2: SWAP1 000003c3: SUB 000003c4: SWAP1 000003c5: SWAP2 000003c6: ADD 000003c7: SWAP2 000003c8: SWAP1 000003c9: DUP7 000003ca: GAS 000003cb: CALL 000003cc: ISZERO 000003cd: DUP1 000003ce: ISZERO 000003cf: PUSH2 0x03dc 000003d2: JUMPI 000003d3: RETURNDATASIZE 000003d4: PUSH1 0x00 000003d6: DUP1 000003d7: RETURNDATACOPY 000003d8: RETURNDATASIZE 000003d9: PUSH1 0x00 000003db: REVERT 000003dc: JUMPDEST 000003dd: POP 000003de: POP 000003df: POP 000003e0: PUSH1 0x20 000003e2: PUSH1 0x40 000003e4: MLOAD 000003e5: SUB 000003e6: MLOAD 000003e7: SWAP2 000003e8: POP 000003e9: DUP4 000003ea: PUSH1 0x01 000003ec: PUSH1 0xa0 000003ee: PUSH1 0x02 000003f0: EXP 000003f1: SUB 000003f2: AND 000003f3: DUP3 000003f4: PUSH1 0x01 000003f6: PUSH1 0xa0 000003f8: PUSH1 0x02 000003fa: EXP 000003fb: SUB 000003fc: AND 000003fd: GT 000003fe: DUP1 000003ff: ISZERO 00000400: PUSH2 0x0421 00000403: JUMPI 00000404: POP 00000405: PUSH1 0x01 00000407: PUSH1 0xa0 00000409: PUSH1 0x02 0000040b: EXP 0000040c: SUB 0000040d: DUP3 0000040e: AND 0000040f: PUSH1 0x00 00000411: SWAP1 00000412: DUP2 00000413: MSTORE 00000414: PUSH1 0x02 00000416: PUSH1 0x20 00000418: MSTORE 00000419: PUSH1 0x40 0000041b: SWAP1 0000041c: KECCAK256 0000041d: SLOAD 0000041e: PUSH1 0xff 00000420: AND 00000421: JUMPDEST 00000422: ISZERO 00000423: ISZERO 00000424: PUSH2 0x042c 00000427: JUMPI 00000428: PUSH1 0x00 0000042a: DUP1 0000042b: REVERT 0000042c: JUMPDEST 0000042d: DUP2 0000042e: SWAP4 0000042f: POP 00000430: DUP3 00000431: DUP1 00000432: PUSH1 0x01 00000434: ADD 00000435: SWAP4 00000436: POP 00000437: POP 00000438: PUSH2 0x0330 0000043b: JUMP 0000043c: JUMPDEST 0000043d: POP 0000043e: PUSH1 0x00 00000440: DUP1 00000441: SLOAD 00000442: PUSH1 0x01 00000444: ADD 00000445: DUP2 00000446: SSTORE 00000447: DUP6 00000448: MLOAD 00000449: DUP2 0000044a: SWAP1 0000044b: DUP2 0000044c: SWAP1 0000044d: PUSH1 0x20 0000044f: DUP10 00000450: ADD 00000451: DUP11 00000452: DUP13 00000453: GAS 00000454: CALL 00000455: SWAP1 00000456: POP 00000457: DUP1 00000458: ISZERO 00000459: ISZERO 0000045a: PUSH2 0x0462 0000045d: JUMPI 0000045e: PUSH1 0x00 00000460: DUP1 00000461: REVERT 00000462: JUMPDEST 00000463: POP 00000464: POP 00000465: POP 00000466: POP 00000467: POP 00000468: POP 00000469: POP 0000046a: POP 0000046b: POP 0000046c: POP 0000046d: POP 0000046e: JUMP 0000046f: STOP 00000470: LOG1 00000471: PUSH6 0x627a7a723058 00000478: KECCAK256 00000479: JUMP 0000047a: UNKNOWN(0xD4) 0000047b: UNKNOWN(0xAD) 0000047c: TIMESTAMP 0000047d: UNKNOWN(0xD1) 0000047e: UNKNOWN(0x2F) 0000047f: UNKNOWN(0xA9) 00000480: UNKNOWN(0xD7) 00000481: BLOCKHASH 00000482: UNKNOWN(0xB1) 00000483: UNKNOWN(0xB0) 00000484: JUMPI 00000485: UNKNOWN(0xB5) 00000486: MSTORE 00000487: MSTORE8 00000488: PUSH12 0xac06bb619395c1146c52699c 00000495: PUSH11
| Severity | Category | Tool | Title | Confidence | Validated | Confirmed | Details |
|---|---|---|---|---|---|---|---|
| high | other | detector | Untrusted CALL target/value reachable | 60 | no | no |
viewtrace_id: 0x6f434ea89b0e30f05177e1e88bd7a89b691a2833e2bea4c2d1811ea262fdf09b
call_targets:
0xd9b20cfed69e76acae3fa1c2ee1faafafcb41f55
target_varies:
no
classification:
constant_target
validation_json{
"sink": "CALL",
"errors": 0,
"status": "sink_reached",
"attempts": 1,
"trace_id": "0x6f434ea89b0e30f05177e1e88bd7a89b691a2833e2bea4c2d1811ea262fdf09b",
"confirmed": false,
"trace_mode": "callTracer",
"call_targets": [
"0xd9b20cfed69e76acae3fa1c2ee1faafafcb41f55"
],
"matched_probe": null,
"target_varies": false,
"classification": "constant_target"
}
witness_json{
"notes": "heuristic witness; entrypoints are best-effort selectors with zeroed calldata",
"constraints": [],
"entrypoints": [
{
"calldata": "0x42cde4e8",
"selector": "0x42cde4e8",
"calldata_variants": [
"0x42cde4e8",
"0x42cde4e80000000000000000000000000000000000000000000000000000000000000000"
]
},
{
"calldata": "0xaa5df9e2",
"selector": "0xaa5df9e2",
"calldata_variants": [
"0xaa5df9e2",
"0xaa5df9e20000000000000000000000000000000000000000000000000000000000000000"
]
},
{
"calldata": "0xaffed0e0",
"selector": "0xaffed0e0",
"calldata_variants": [
"0xaffed0e0",
"0xaffed0e00000000000000000000000000000000000000000000000000000000000000000"
]
},
{
"calldata": "0xf12d394f",
"selector": "0xf12d394f",
"calldata_variants": [
"0xf12d394f",
"0xf12d394f0000000000000000000000000000000000000000000000000000000000000000"
]
}
]
}
evidence_json{
"examples": [
{
"pc": 971,
"opcode": "CALL",
"returndata_checked": null,
"value_expression_category": "computed",
"target_expression_category": "computed"
},
{
"pc": 1108,
"opcode": "CALL",
"returndata_checked": null,
"value_expression_category": "computed",
"target_expression_category": "computed"
}
],
"call_count": 2,
"guards_detected": [],
"untrusted_call_count": 2
}
|
| high | other | detector | ETH value transfer possible | 55 | no | no |
viewtrace_id: 0x6f434ea89b0e30f05177e1e88bd7a89b691a2833e2bea4c2d1811ea262fdf09b
call_targets:
0xd9b20cfed69e76acae3fa1c2ee1faafafcb41f55
target_varies:
no
classification:
constant_target
validation_json{
"sink": "CALL",
"errors": 0,
"status": "sink_reached",
"attempts": 1,
"trace_id": "0x6f434ea89b0e30f05177e1e88bd7a89b691a2833e2bea4c2d1811ea262fdf09b",
"confirmed": false,
"trace_mode": "callTracer",
"call_targets": [
"0xd9b20cfed69e76acae3fa1c2ee1faafafcb41f55"
],
"matched_probe": null,
"target_varies": false,
"classification": "constant_target"
}
witness_json{
"notes": "heuristic witness; entrypoints are best-effort selectors with zeroed calldata",
"constraints": [],
"entrypoints": [
{
"calldata": "0x42cde4e8",
"selector": "0x42cde4e8",
"calldata_variants": [
"0x42cde4e8",
"0x42cde4e80000000000000000000000000000000000000000000000000000000000000000"
]
},
{
"calldata": "0xaa5df9e2",
"selector": "0xaa5df9e2",
"calldata_variants": [
"0xaa5df9e2",
"0xaa5df9e20000000000000000000000000000000000000000000000000000000000000000"
]
},
{
"calldata": "0xaffed0e0",
"selector": "0xaffed0e0",
"calldata_variants": [
"0xaffed0e0",
"0xaffed0e00000000000000000000000000000000000000000000000000000000000000000"
]
},
{
"calldata": "0xf12d394f",
"selector": "0xf12d394f",
"calldata_variants": [
"0xf12d394f",
"0xf12d394f0000000000000000000000000000000000000000000000000000000000000000"
]
}
]
}
evidence_json{
"examples": [
{
"pc": 971,
"opcode": "CALL",
"returndata_checked": null,
"value_expression_category": "computed",
"target_expression_category": "computed"
},
{
"pc": 1108,
"opcode": "CALL",
"returndata_checked": null,
"value_expression_category": "computed",
"target_expression_category": "computed"
}
],
"eth_value_calls": 2,
"guards_detected": []
}
|
| medium | access_control | codex | Externally reachable CALL with computed target/value (possible arbitrary execution/ETH transfer) | 75 | no | — |
viewevidence_json{
"evidence": "Both callsites are CALL with target/value marked as computed and no guards detected; no CALLER/ORIGIN opcodes observed. Detector flagged \u201cUntrusted CALL target/value reachable\u201d and \u201cETH value transfer possible.\u201d Validation trace suggests a constant target equal to the contract address, so this may be a false positive if the target is not actually user-controlled.",
"locations": [
"pc:971",
"pc:1108"
],
"recommendation": "Restrict who can invoke the external-call path (e.g., owner/role checks) or require verifiable authorization (signatures). If this is intended to be an executor, add an allowlist for targets and cap ETH value; document the trust model explicitly.",
"exploit_scenario": "If these CALL parameters are influenced by calldata and the entrypoint is publicly callable, an attacker can direct the contract to call arbitrary targets with the contract\u2019s ETH balance, potentially draining funds or abusing approvals. Validation hints the target might be constant (self), so confirm whether the target/value are actually user-controlled before relying on this risk assessment."
}
|
| low | other | codex | Return data not validated for low-level CALLs | 65 | no | — |
viewevidence_json{
"evidence": "Callsites list `returndata_checked: null`; success is checked only via the CALL result, with no return-data decoding in the call blocks.",
"locations": [
"pc:971",
"pc:1108"
],
"recommendation": "When expecting ERC20-style semantics, enforce `success && (returndata.length == 0 || abi.decode(returndata, (bool)) == true)` or use a well-tested safe-call helper.",
"exploit_scenario": "If these CALLs interact with ERC20-like tokens that return false without reverting, the contract may treat the call as successful even though the token action failed, leading to accounting inconsistencies or stuck funds. If the CALLs are arbitrary, this may be acceptable but should be explicit."
}
|