Analysis Run

445f4446-e77f-4c06-b65d-3c19ddcbbe98

complete

Chain ID

1

Address

0xbb7db1b64e50e3821fd462b99311219410ab445f

Block Number

—

Created

Tue, Dec 30, 2025 2:34 PM

Review Summary

What survived the funnel

Open this run to answer one question: is this real attacker-relevant behavior with real impact, or just normal contract plumbing?

back to vulns open contract

Confirmed

2

Validated

2

Source

Bytecode only

Review Backing

Not yet

Best current signal

Untrusted CALL target/value reachable

crit 0 high 2 direct contract

Review Checklist

1. Read the findings table first. Ignore raw jobs until the result looks real.

2. Confirm attacker control, not just the existence of a sink.

3. Confirm money or privilege impact.

4. Keep it if the behavior is real. Kill it if this is normal proxy, admin, or upgrade plumbing.

Processing Jobs

Status & attempts

ID	Type	Status	Attempts	Heartbeat
30702	report.consolidate	complete	1 / 1	3 months ago
75208	artifact.fetch	complete	1 / 3	1 week ago
75209	tool.cast_disasm	complete	1 / 3	1 week ago
75210	analysis.bundle	complete	1 / 3	1 week ago
75211	capability.graph	complete	1 / 3	1 week ago
75212	detector.run	complete	1 / 3	1 week ago
75213	validation.fork	complete	1 / 3	1 week ago

Artifact

Runtime bytecode: available

Creation TX: —

Deployer: —

Proxy: no

Implementation:

—

Verified Source: no

Slither

tool.slither

No slither job recorded yet.

Codex

report.consolidate

Job Status

complete

Attempts

1 / 1

Findings

0

No findings?

yes

Summary

No concrete vulnerability patterns can be concluded from the provided runtime bytecode alone.

View stderr

[codex:563902] OpenAI Codex v0.77.0 (research preview)
[codex:563902] --------
[codex:563902] workdir: /tmp/codex-multi-86ibi8yq
[codex:563902] model: gpt-5.2-codex
[codex:563902] provider: openai
[codex:563902] approval: never
[codex:563902] sandbox: read-only
[codex:563902] reasoning effort: xhigh
[codex:563902] reasoning summaries: auto
[codex:563902] session id: 019b6fad-10fb-7e82-949e-ac64f9b359db
[codex:563902] --------
[codex:563902] user
[codex:563902] You are a security auditor. You are given EVM runtime bytecode (and possibly a disassembly) for a contract with NO verified source.
[codex:563902] This is best-effort. Do not hallucinate: only flag issues when there's a concrete, explainable angle from bytecode/disasm patterns.
[codex:563902] 
[codex:563902] You MUST read the full `BYTECODE_BUNDLE.txt` before concluding.
[codex:563902] 
[codex:563902] Output MUST be valid JSON matching the provided schema.
[codex:563902] - If you cannot identify a concrete issue from bytecode/disasm alone: set no_findings=true and findings=[].
[codex:563902] - Otherwise: include findings with severity/category/title/evidence and point locations to BYTECODE_BUNDLE.txt line ranges when possible.
[codex:563902] 
[codex:563902] Output constraints (IMPORTANT):
[codex:563902] - severity MUST be exactly one of: info, low, medium, high, critical (lowercase).
[codex:563902] - category MUST be exactly one of: access_control, reentrancy, math, oracle, upgradeability, auth, other.
[codex:563902] mcp startup: no servers
[codex:563902] 
[codex:563902] thinking
[codex:563902] **Reading BYTECODE_BUNDLE file**
[codex:563902] exec
[codex:563902] /bin/bash -lc ls in /tmp/codex-multi-86ibi8yq succeeded in 6ms:
[codex:563902] BYTECODE_BUNDLE.txt
[codex:563902] codex-output-schema.json
[codex:563902] exec
[codex:563902] /bin/bash -lc 'cat BYTECODE_BUNDLE.txt' in /tmp/codex-multi-86ibi8yq succeeded in 5ms:
[codex:563902] Runtime bytecode bundle for best-effort auditing.
[codex:563902] Note: without verified source, conclusions are low-confidence unless a concrete pattern is visible.
[codex:563902] 
[codex:563902] FILE: runtime_bytecode.hex
[codex:563902] 0x73265c27c849b0e1a62636f6007e8a74dc2a2584aa3d366025573d3d3d3d34865af16031565b363d3d373d3d363d855af45b3d82803e603c573d81fd5b3d81f3
[codex:563902] 
[codex:563902] thinking
[codex:563902] **Interpreting proxy bytecode patterns**
[codex:563902] exec
[codex:563902] /bin/bash -lc 'which evm || true' in /tmp/codex-multi-86ibi8yq succeeded in 5ms:
[codex:563902] 
[codex:563902] 
[codex:563902] thinking
[codex:563902] **Considering Python-based disassembler script**
[codex:563902] exec
[codex:563902] /bin/bash -lc "python - <<'PY'
[codex:563902] code='73265c27c849b0e1a62636f6007e8a74dc2a2584aa3d366025573d3d3d3d34865af16031565b363d3d373d3d363d855af45b3d82803e603c573d81fd5b3d81f3'
[codex:563902] # disasm
[codex:563902] ops={
[codex:563902] 0x00:'STOP',0x01:'ADD',0x02:'MUL',0x03:'SUB',0x04:'DIV',0x05:'SDIV',0x06:'MOD',0x07:'SMOD',0x08:'ADDMOD',0x09:'MULMOD',0x0a:'EXP',0x0b:'SIGNEXTEND',
[codex:563902] 0x10:'LT',0x11:'GT',0x12:'SLT',0x13:'SGT',0x14:'EQ',0x15:'ISZERO',0x16:'AND',0x17:'OR',0x18:'XOR',0x19:'NOT',0x1a:'BYTE',0x1b:'SHL',0x1c:'SHR',0x1d:'SAR',
[codex:563902] 0x20:'SHA3',
[codex:563902] 0x30:'ADDRESS',0x31:'BALANCE',0x32:'ORIGIN',0x33:'CALLER',0x34:'CALLVALUE',0x35:'CALLDATALOAD',0x36:'CALLDATASIZE',0x37:'CALLDATACOPY',0x38:'CODESIZE',0x39:'CODECOPY',0x3a:'GASPRICE',0x3b:'EXTCODESIZE',0x3c:'EXTCODECOPY',0x3d:'RETURNDATASIZE',0x3e:'RETURNDATACOPY',0x3f:'EXTCODEHASH',
[codex:563902] 0x40:'BLOCKHASH',0x41:'COINBASE',0x42:'TIMESTAMP',0x43:'NUMBER',0x44:'DIFFICULTY',0x45:'GASLIMIT',0x46:'CHAINID',0x47:'SELFBALANCE',0x48:'BASEFEE',
[codex:563902] 0x50:'POP',0x51:'MLOAD',0x52:'MSTORE',0x53:'MSTORE8',0x54:'SLOAD',0x55:'SSTORE',0x56:'JUMP',0x57:'JUMPI',0x58:'PC',0x59:'MSIZE',0x5a:'GAS',0x5b:'JUMPDEST',
[codex:563902] 0x60:'PUSH1',0x61:'PUSH2',0x62:'PUSH3',0x63:'PUSH4',0x64:'PUSH5',0x65:'PUSH6',0x66:'PUSH7',0x67:'PUSH8',0x68:'PUSH9',0x69:'PUSH10',0x6a:'PUSH11',0x6b:'PUSH12',0x6c:'PUSH13',0x6d:'PUSH14',0x6e:'PUSH15',0x6f:'PUSH16',0x70:'PUSH17',0x71:'PUSH18',0x72:'PUSH19',0x73:'PUSH20',0x74:'PUSH21',0x75:'PUSH22',0x76:'PUSH23',0x77:'PUSH24',0x78:'PUSH25',0x79:'PUSH26',0x7a:'PUSH27',0x7b:'PUSH28',0x7c:'PUSH29',0x7d:'PUSH30',0x7e:'PUSH31',0x7f:'PUSH32',
[codex:563902] 0x80:'DUP1',0x81:'DUP2',0x82:'DUP3',0x83:'DUP4',0x84:'DUP5',0x85:'DUP6',0x86:'DUP7',0x87:'DUP8',0x88:'DUP9',0x89:'DUP10',0x8a:'DUP11',0x8b:'DUP12',0x8c:'DUP13',0x8d:'DUP14',0x8e:'DUP15',0x8f:'DUP16',
[codex:563902] 0x90:'SWAP1',0x91:'SWAP2',0x92:'SWAP3',0x93:'SWAP4',0x94:'SWAP5',0x95:'SWAP6',0x96:'SWAP7',0x97:'SWAP8',0x98:'SWAP9',0x99:'SWAP10',0x9a:'SWAP11',0x9b:'SWAP12',0x9c:'SWAP13',0x9d:'SWAP14',0x9e:'SWAP15',0x9f:'SWAP16',
[codex:563902] 0xa0:'LOG0',0xa1:'LOG1',0xa2:'LOG2',0xa3:'LOG3',0xa4:'LOG4',
[codex:563902] 0xf0:'CREATE',0xf1:'CALL',0xf2:'CALLCODE',0xf3:'RETURN',0xf4:'DELEGATECALL',0xf5:'CREATE2',0xfa:'STATICCALL',0xfd:'REVERT',0xfe:'INVALID',0xff:'SELFDESTRUCT'
[codex:563902] }
[codex:563902] 
[codex:563902] b=bytes.fromhex(code)
[codex:563902] 
[codex:563902] i=0
[codex:563902] out=[]
[codex:563902] while i<len(b):
[codex:563902]     op=b[i]
[codex:563902]     name=ops.get(op,f'UNKNOWN_{op:02x}')
[codex:563902]     i+=1
[codex:563902]     if 0x60<=op<=0x7f:
[codex:563902]         n=op-0x5f
[codex:563902]         data=b[i:i+n]
[codex:563902]         i+=n
[codex:563902]         out.append(f'{i-n:04x}: {name} 0x{data.hex()}')
[codex:563902]     else:
[codex:563902]         out.append(f'{i-1:04x}: {name}')
[codex:563902] 
[codex:563902] print('\\n'.join(out))
[codex:563902] PY" in /tmp/codex-multi-86ibi8yq succeeded in 30ms:
[codex:563902] 0001: PUSH20 0x265c27c849b0e1a62636f6007e8a74dc2a2584aa
[codex:563902] 0015: RETURNDATASIZE
[codex:563902] 0016: CALLDATASIZE
[codex:563902] 0018: PUSH1 0x25
[codex:563902] 0019: JUMPI
[codex:563902] 001a: RETURNDATASIZE
[codex:563902] 001b: RETURNDATASIZE
[codex:563902] 001c: RETURNDATASIZE
[codex:563902] 001d: RETURNDATASIZE
[codex:563902] 001e: CALLVALUE
[codex:563902] 001f: DUP7
[codex:563902] 0020: GAS
[codex:563902] 0021: CALL
[codex:563902] 0023: PUSH1 0x31
[codex:563902] 0024: JUMP
[codex:563902] 0025: JUMPDEST
[codex:563902] 0026: CALLDATASIZE
[codex:563902] 0027: RETURNDATASIZE
[codex:563902] 0028: RETURNDATASIZE
[codex:563902] 0029: CALLDATACOPY
[codex:563902] 
[codex:563902] thinking
[codex:563902] **Analyzing proxy bytecode logic**
[codex:563902] exec
[codex:563902] /bin/bash -lc 'nl -ba BYTECODE_BUNDLE.txt' in /tmp/codex-multi-86ibi8yq succeeded in 5ms:
[codex:563902]      1	Runtime bytecode bundle for best-effort auditing.
[codex:563902]      2	Note: without verified source, conclusions are low-confidence unless a concrete pattern is visible.
[codex:563902]      3	
[codex:563902]      4	FILE: runtime_bytecode.hex
[codex:563902]      5	0x73265c27c849b0e1a62636f6007e8a74dc2a2584aa3d366025573d3d3d3d34865af16031565b363d3d373d3d363d855af45b3d82803e603c573d81fd5b3d81f3
[codex:563902] 
[codex:563902] thinking
[codex:563902] **Formulating JSON vulnerability report**
[codex:563902] codex
[codex:563902] {"no_findings":true,"summary":"No concrete vulnerability patterns can be concluded from the provided runtime bytecode alone.","findings":[]}
[codex:563902] tokens used
[codex:563902] 12,380
[codex:563902] {"no_findings":true,"summary":"No concrete vulnerability patterns can be concluded from the provided runtime bytecode alone.","findings":[]}

Metadata

{
    "codex": {
        "ran_at": "2025-12-30T14:34:30.350125+00:00",
        "returncode": 0
    },
    "summary": "No concrete vulnerability patterns can be concluded from the provided runtime bytecode alone.",
    "raw_final": {
        "summary": "No concrete vulnerability patterns can be concluded from the provided runtime bytecode alone.",
        "findings": [],
        "no_findings": true
    },
    "no_findings": true,
    "schema_version": 1
}

Opcode Heuristics

tool.cast_disasm

Delegatecall

1

Selfdestruct

0

CREATE2

0

CALL-family (heavy)

1

EXT*/BALANCE

0

Total opcodes

41

Flags

delegatecall_present

View cast disassembly output

00000000: PUSH20 0x265c27c849b0e1a62636f6007e8a74dc2a2584aa
00000015: RETURNDATASIZE
00000016: CALLDATASIZE
00000017: PUSH1 0x25
00000019: JUMPI
0000001a: RETURNDATASIZE
0000001b: RETURNDATASIZE
0000001c: RETURNDATASIZE
0000001d: RETURNDATASIZE
0000001e: CALLVALUE
0000001f: DUP7
00000020: GAS
00000021: CALL
00000022: PUSH1 0x31
00000024: JUMP
00000025: JUMPDEST
00000026: CALLDATASIZE
00000027: RETURNDATASIZE
00000028: RETURNDATASIZE
00000029: CALLDATACOPY
0000002a: RETURNDATASIZE
0000002b: RETURNDATASIZE
0000002c: CALLDATASIZE
0000002d: RETURNDATASIZE
0000002e: DUP6
0000002f: GAS
00000030: DELEGATECALL
00000031: JUMPDEST
00000032: RETURNDATASIZE
00000033: DUP3
00000034: DUP1
00000035: RETURNDATACOPY
00000036: PUSH1 0x3c
00000038: JUMPI
00000039: RETURNDATASIZE
0000003a: DUP2
0000003b: REVERT
0000003c: JUMPDEST
0000003d: RETURNDATASIZE
0000003e: DUP2
0000003f: RETURN

Findings

validated = confirmed for call sinks; sink observed for others

Severity	Category	Tool	Title	Confidence	Validated	Confirmed	Details
critical	upgradeability	detector	Untrusted DELEGATECALL target reachable	70	no	no	view validation_json { "sink": "DELEGATECALL", "errors": 10, "status": "unknown", "attempts": 11, "confirmed": false, "trace_mode": "callTracer", "call_targets": null, "matched_probe": null, "target_varies": null, "classification": "no_sink" } witness_json { "notes": "heuristic witness; entrypoints are best-effort selectors with zeroed calldata", "constraints": [], "entrypoints": [ { "calldata": "0x", "selector": "fallback", "calldata_variants": [ "0x" ] } ] } evidence_json { "examples": [ { "pc": 48, "opcode": "DELEGATECALL", "returndata_checked": null, "value_expression_category": "n/a", "target_expression_category": "computed" } ], "guards_detected": [], "delegatecall_count": 1, "untrusted_delegatecall_count": 1 }
high	other	detector	Untrusted CALL target/value reachable	60	yes	yes	view trace_id: 0xa87bf606165be6722cba496c674aacce07790f1ffa9d77772dfa647858710da9 call_targets: 0x265c27c849b0e1a62636f6007e8a74dc2a2584aa, 0xbb7db1b64e50e3821fd462b99311219410ab445f target_varies: yes classification: target_varies validation_json { "sink": "CALL", "errors": 0, "status": "confirmed", "attempts": 1, "trace_id": "0xa87bf606165be6722cba496c674aacce07790f1ffa9d77772dfa647858710da9", "confirmed": true, "trace_mode": "callTracer", "call_targets": [ "0x265c27c849b0e1a62636f6007e8a74dc2a2584aa", "0xbb7db1b64e50e3821fd462b99311219410ab445f" ], "matched_probe": null, "target_varies": true, "classification": "target_varies" } witness_json { "notes": "heuristic witness; entrypoints are best-effort selectors with zeroed calldata", "constraints": [], "entrypoints": [ { "calldata": "0x", "selector": "fallback", "calldata_variants": [ "0x" ] } ] } evidence_json { "examples": [ { "pc": 33, "opcode": "CALL", "returndata_checked": null, "value_expression_category": "computed", "target_expression_category": "computed" } ], "call_count": 1, "guards_detected": [], "untrusted_call_count": 1 }
high	other	detector	ETH value transfer possible	55	yes	yes	view trace_id: 0xa87bf606165be6722cba496c674aacce07790f1ffa9d77772dfa647858710da9 call_targets: 0x265c27c849b0e1a62636f6007e8a74dc2a2584aa, 0xbb7db1b64e50e3821fd462b99311219410ab445f target_varies: yes classification: target_varies validation_json { "sink": "CALL", "errors": 0, "status": "confirmed", "attempts": 1, "trace_id": "0xa87bf606165be6722cba496c674aacce07790f1ffa9d77772dfa647858710da9", "confirmed": true, "trace_mode": "callTracer", "call_targets": [ "0x265c27c849b0e1a62636f6007e8a74dc2a2584aa", "0xbb7db1b64e50e3821fd462b99311219410ab445f" ], "matched_probe": null, "target_varies": true, "classification": "target_varies" } witness_json { "notes": "heuristic witness; entrypoints are best-effort selectors with zeroed calldata", "constraints": [], "entrypoints": [ { "calldata": "0x", "selector": "fallback", "calldata_variants": [ "0x" ] } ] } evidence_json { "examples": [ { "pc": 33, "opcode": "CALL", "returndata_checked": null, "value_expression_category": "computed", "target_expression_category": "computed" } ], "eth_value_calls": 1, "guards_detected": [] }
medium	upgradeability	cast	DELEGATECALL present	80	no	—	view evidence_json { "notes": "delegatecall enables execution in caller context; common in proxies/upgradeable patterns", "delegatecall_count": 1 }