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Analysis Run

7ccc4d92-5694-4191-9dea-820ef7308e61

failed
Chain ID
1
Address
0x6a39909e805a3eadd2b61fff61147796ca6abb47
Block Number
—
Created
Tue, Dec 30, 2025 2:22 AM
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
0
Validated
0
Source
Verified
Review Backing
Not yet
Best current signal
Untrusted DELEGATECALL target reachable
crit 0 high 0 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
30660 report.consolidate complete 1 / 1 3 months ago
74956 artifact.fetch failed 1 / 3 1 week ago
74957 tool.cast_disasm complete 1 / 3 1 week ago
74958 analysis.bundle complete 1 / 3 1 week ago
74959 capability.graph complete 1 / 3 1 week ago
74960 detector.run complete 1 / 3 1 week ago
74961 validation.fork complete 1 / 3 1 week ago

Artifact

Runtime bytecode: available
Creation TX: —
Deployer: —
Proxy: no
Implementation:
—
Verified Source: yes

Slither

tool.slither

No slither job recorded yet.

Codex

report.consolidate
Job Status
complete
Attempts
1 / 1
Findings
0
No findings?
yes
Summary
Reviewed first-party UpgradeBeaconProxy and found no exploitable issues within scope.
View stderr 
[codex:590641] OpenAI Codex v0.77.0 (research preview)
[codex:590641] --------
[codex:590641] workdir: /tmp/codex-multi-3yldauqf
[codex:590641] model: gpt-5.2-codex
[codex:590641] provider: openai
[codex:590641] approval: never
[codex:590641] sandbox: read-only
[codex:590641] reasoning effort: xhigh
[codex:590641] reasoning summaries: auto
[codex:590641] session id: 019b6d10-3384-7292-9d39-296524090a26
[codex:590641] --------
[codex:590641] user
[codex:590641] You are a security auditor. Audit this Solidity codebase for exploitable vulnerabilities.
[codex:590641] Focus on: reentrancy, access control, upgradeability/proxy issues, signature validation, oracle manipulation,
[codex:590641] accounting/invariant breaks, external call patterns, unchecked return values, and dangerous delegatecall.
[codex:590641] 
[codex:590641] Scope rules:
[codex:590641] - You MUST fully read `AUDIT_BUNDLE.txt` before concluding. It contains the complete contents of all first-party `contracts/**/*.sol` files.
[codex:590641] - Treat `lib/` and `@openzeppelin/` as third-party dependencies; skip them unless there is a concrete misuse angle in first-party code.
[codex:590641] 
[codex:590641] Output MUST be valid JSON matching the provided schema.
[codex:590641] - If you find nothing meaningful: set no_findings=true and findings=[].
[codex:590641] - Otherwise: set no_findings=false and include findings with severity/category/title and file/line locations when possible.
[codex:590641] 
[codex:590641] Output constraints (IMPORTANT):
[codex:590641] - severity MUST be exactly one of: info, low, medium, high, critical (lowercase).
[codex:590641] - category MUST be exactly one of: access_control, reentrancy, math, oracle, upgradeability, auth, other.
[codex:590641] mcp startup: no servers
[codex:590641] 
[codex:590641] thinking
[codex:590641] **Reading AUDIT_BUNDLE file**
[codex:590641] exec
[codex:590641] /bin/bash -lc ls in /tmp/codex-multi-3yldauqf succeeded in 5ms:
[codex:590641] AUDIT_BUNDLE.txt
[codex:590641] codex-output-schema.json
[codex:590641] contracts
[codex:590641] exec
[codex:590641] /bin/bash -lc 'cat AUDIT_BUNDLE.txt' in /tmp/codex-multi-3yldauqf succeeded in 5ms:
[codex:590641] This file concatenates the full contents of first-party Solidity sources for auditing.
[codex:590641] 
[codex:590641] ================================================================================
[codex:590641] FILE: contracts/@celo-org/optics-sol/contracts/upgrade/UpgradeBeaconProxy.sol
[codex:590641] ================================================================================
[codex:590641] // SPDX-License-Identifier: MIT
[codex:590641] pragma solidity >=0.6.11;
[codex:590641] 
[codex:590641] // ============ External Imports ============
[codex:590641] import {Address} from "@openzeppelin/contracts/utils/Address.sol";
[codex:590641] 
[codex:590641] /**
[codex:590641]  * @title UpgradeBeaconProxy
[codex:590641]  * @notice
[codex:590641]  * Proxy contract which delegates all logic, including initialization,
[codex:590641]  * to an implementation contract.
[codex:590641]  * The implementation contract is stored within an Upgrade Beacon contract;
[codex:590641]  * the implementation contract can be changed by performing an upgrade on the Upgrade Beacon contract.
[codex:590641]  * The Upgrade Beacon contract for this Proxy is immutably specified at deployment.
[codex:590641]  * @dev This implementation combines the gas savings of keeping the UpgradeBeacon address outside of contract storage
[codex:590641] 
[codex:590641] thinking
[codex:590641] **Analyzing UpgradeBeaconProxy for vulnerabilities**
[codex:590641] 
[codex:590641] I've carefully examined the UpgradeBeaconProxy contract's delegatecall and upgrade beacon interactions, focusing on upgradeability risks and runtime checks. While the proxy lacks runtime validation that the beacon returns a contract, this is typical for such proxies and presents a low-severity risk only if the beacon is maliciously compromised. Since no direct upgrade functions or access control reside in the proxy, and the beacon is immutable, I see no significant vulnerabilities here. I'll prepare a JSON summary stating no findings and justifying this assessment accordingly.
[codex:590641] codex
[codex:590641] {"no_findings":true,"summary":"Reviewed first-party UpgradeBeaconProxy and found no exploitable issues within scope.","findings":[]}
[codex:590641] tokens used
[codex:590641] 6,550
[codex:590641] {"no_findings":true,"summary":"Reviewed first-party UpgradeBeaconProxy and found no exploitable issues within scope.","findings":[]}
Metadata 
{
    "codex": {
        "ran_at": "2025-12-30T02:22:57.399279+00:00",
        "returncode": 0
    },
    "summary": "Reviewed first-party UpgradeBeaconProxy and found no exploitable issues within scope.",
    "raw_final": {
        "summary": "Reviewed first-party UpgradeBeaconProxy and found no exploitable issues within scope.",
        "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
2
Total opcodes
299
Flags
delegatecall_present
View cast disassembly output 
00000000: PUSH1 0x80
00000002: PUSH1 0x40
00000004: MSTORE
00000005: CALLDATASIZE
00000006: PUSH2 0x0013
00000009: JUMPI
0000000a: PUSH2 0x0011
0000000d: PUSH2 0x0017
00000010: JUMP
00000011: JUMPDEST
00000012: STOP
00000013: JUMPDEST
00000014: PUSH2 0x0011
00000017: JUMPDEST
00000018: PUSH2 0x0027
0000001b: PUSH2 0x0022
0000001e: PUSH2 0x002f
00000021: JUMP
00000022: JUMPDEST
00000023: PUSH2 0x005f
00000026: JUMP
00000027: JUMPDEST
00000028: JUMP
00000029: JUMPDEST
0000002a: EXTCODESIZE
0000002b: ISZERO
0000002c: ISZERO
0000002d: SWAP1
0000002e: JUMP
0000002f: JUMPDEST
00000030: PUSH1 0x00
00000032: PUSH2 0x005a
00000035: PUSH32 0x0000000000000000000000003b96b42d1f4962cb21049fb237a886e2860afacb
00000056: PUSH2 0x0083
00000059: JUMP
0000005a: JUMPDEST
0000005b: SWAP1
0000005c: POP
0000005d: SWAP1
0000005e: JUMP
0000005f: JUMPDEST
00000060: CALLDATASIZE
00000061: PUSH1 0x00
00000063: DUP1
00000064: CALLDATACOPY
00000065: PUSH1 0x00
00000067: DUP1
00000068: CALLDATASIZE
00000069: PUSH1 0x00
0000006b: DUP5
0000006c: GAS
0000006d: DELEGATECALL
0000006e: RETURNDATASIZE
0000006f: PUSH1 0x00
00000071: DUP1
00000072: RETURNDATACOPY
00000073: DUP1
00000074: DUP1
00000075: ISZERO
00000076: PUSH2 0x007e
00000079: JUMPI
0000007a: RETURNDATASIZE
0000007b: PUSH1 0x00
0000007d: RETURN
0000007e: JUMPDEST
0000007f: RETURNDATASIZE
00000080: PUSH1 0x00
00000082: REVERT
00000083: JUMPDEST
00000084: PUSH1 0x40
00000086: MLOAD
00000087: PUSH1 0x00
00000089: SWAP1
0000008a: DUP2
0000008b: SWAP1
0000008c: DUP2
0000008d: SWAP1
0000008e: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
000000a3: DUP6
000000a4: AND
000000a5: SWAP1
000000a6: DUP3
000000a7: DUP2
000000a8: DUP2
000000a9: DUP2
000000aa: DUP6
000000ab: GAS
000000ac: STATICCALL
000000ad: SWAP2
000000ae: POP
000000af: POP
000000b0: RETURNDATASIZE
000000b1: DUP1
000000b2: PUSH1 0x00
000000b4: DUP2
000000b5: EQ
000000b6: PUSH2 0x00db
000000b9: JUMPI
000000ba: PUSH1 0x40
000000bc: MLOAD
000000bd: SWAP2
000000be: POP
000000bf: PUSH1 0x1f
000000c1: NOT
000000c2: PUSH1 0x3f
000000c4: RETURNDATASIZE
000000c5: ADD
000000c6: AND
000000c7: DUP3
000000c8: ADD
000000c9: PUSH1 0x40
000000cb: MSTORE
000000cc: RETURNDATASIZE
000000cd: DUP3
000000ce: MSTORE
000000cf: RETURNDATASIZE
000000d0: PUSH1 0x00
000000d2: PUSH1 0x20
000000d4: DUP5
000000d5: ADD
000000d6: RETURNDATACOPY
000000d7: PUSH2 0x00e0
000000da: JUMP
000000db: JUMPDEST
000000dc: PUSH1 0x60
000000de: SWAP2
000000df: POP
000000e0: JUMPDEST
000000e1: POP
000000e2: SWAP2
000000e3: POP
000000e4: SWAP2
000000e5: POP
000000e6: DUP2
000000e7: DUP2
000000e8: SWAP1
000000e9: PUSH2 0x018a
000000ec: JUMPI
000000ed: PUSH1 0x40
000000ef: MLOAD
000000f0: PUSH32 0x08c379a000000000000000000000000000000000000000000000000000000000
00000111: DUP2
00000112: MSTORE
00000113: PUSH1 0x04
00000115: ADD
00000116: DUP1
00000117: DUP1
00000118: PUSH1 0x20
0000011a: ADD
0000011b: DUP3
0000011c: DUP2
0000011d: SUB
0000011e: DUP3
0000011f: MSTORE
00000120: DUP4
00000121: DUP2
00000122: DUP2
00000123: MLOAD
00000124: DUP2
00000125: MSTORE
00000126: PUSH1 0x20
00000128: ADD
00000129: SWAP2
0000012a: POP
0000012b: DUP1
0000012c: MLOAD
0000012d: SWAP1
0000012e: PUSH1 0x20
00000130: ADD
00000131: SWAP1
00000132: DUP1
00000133: DUP4
00000134: DUP4
00000135: PUSH1 0x00
00000137: JUMPDEST
00000138: DUP4
00000139: DUP2
0000013a: LT
0000013b: ISZERO
0000013c: PUSH2 0x014f
0000013f: JUMPI
00000140: DUP2
00000141: DUP2
00000142: ADD
00000143: MLOAD
00000144: DUP4
00000145: DUP3
00000146: ADD
00000147: MSTORE
00000148: PUSH1 0x20
0000014a: ADD
0000014b: PUSH2 0x0137
0000014e: JUMP
0000014f: JUMPDEST
00000150: POP
00000151: POP
00000152: POP
00000153: POP
00000154: SWAP1
00000155: POP
00000156: SWAP1
00000157: DUP2
00000158: ADD
00000159: SWAP1
0000015a: PUSH1 0x1f
0000015c: AND
0000015d: DUP1
0000015e: ISZERO
0000015f: PUSH2 0x017c
00000162: JUMPI
00000163: DUP1
00000164: DUP3
00000165: SUB
00000166: DUP1
00000167: MLOAD
00000168: PUSH1 0x01
0000016a: DUP4
0000016b: PUSH1 0x20
0000016d: SUB
0000016e: PUSH2 0x0100
00000171: EXP
00000172: SUB
00000173: NOT
00000174: AND
00000175: DUP2
00000176: MSTORE
00000177: PUSH1 0x20
00000179: ADD
0000017a: SWAP2
0000017b: POP
0000017c: JUMPDEST
0000017d: POP
0000017e: SWAP3
0000017f: POP
00000180: POP
00000181: POP
00000182: PUSH1 0x40
00000184: MLOAD
00000185: DUP1
00000186: SWAP2
00000187: SUB
00000188: SWAP1
00000189: REVERT
0000018a: JUMPDEST
0000018b: POP
0000018c: DUP1
0000018d: DUP1
0000018e: PUSH1 0x20
00000190: ADD
00000191: SWAP1
00000192: MLOAD
00000193: PUSH1 0x20
00000195: DUP2
00000196: LT
00000197: ISZERO
00000198: PUSH2 0x01a0
0000019b: JUMPI
0000019c: PUSH1 0x00
0000019e: DUP1
0000019f: REVERT
000001a0: JUMPDEST
000001a1: POP
000001a2: MLOAD
000001a3: SWAP5
000001a4: SWAP4
000001a5: POP
000001a6: POP
000001a7: POP
000001a8: POP
000001a9: JUMP
000001aa: INVALID
000001ab: LOG2
000001ac: PUSH5 0x6970667358
000001b2: UNKNOWN(0x22)
000001b3: SLT
000001b4: KECCAK256
000001b5: GASLIMIT
000001b6: UNKNOWN(0xE2)
000001b7: SWAP8
000001b8: DUP15
000001b9: UNKNOWN(0xB5)
000001ba: SLT
000001bb: UNKNOWN(0xEE)
000001bc: CALLER
000001bd: PUSH15 0xa17d3aebe82e86ec3eccf27a023a07
000001cd: UNKNOWN(0xF6)
000001ce: UNKNOWN(0xC2)
000001cf: UNKNOWN(0x4B)
000001d0: UNKNOWN(0xD7)
000001d1: UNKNOWN(0xE9)
000001d2: UNKNOWN(0xB5)
000001d3: EXTCODECOPY
000001d4: DUP15
000001d5: PUSH5 0x736f6c6343
000001db: STOP
000001dc: SMOD
000001dd: MOD
000001de: STOP
000001df: CALLER

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
trace_id: 0xd2ad6f7a1ff8ef0265ae3df98b7f9bfa4ccb30f61e40459ba3eadf1ef3bc9077
call_targets: 0x67364232a8f8da6f22df3be3408ef9872132f2a6
target_varies: no
classification: constant_target
validation_json 
{
    "sink": "DELEGATECALL",
    "errors": 0,
    "status": "sink_reached",
    "attempts": 1,
    "trace_id": "0xd2ad6f7a1ff8ef0265ae3df98b7f9bfa4ccb30f61e40459ba3eadf1ef3bc9077",
    "confirmed": false,
    "trace_mode": "callTracer",
    "call_targets": [
        "0x67364232a8f8da6f22df3be3408ef9872132f2a6"
    ],
    "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": "0x",
            "selector": "fallback",
            "calldata_variants": [
                "0x"
            ]
        }
    ]
}
evidence_json 
{
    "examples": [
        {
            "pc": 109,
            "opcode": "DELEGATECALL",
            "returndata_checked": null,
            "value_expression_category": "n/a",
            "target_expression_category": "computed"
        }
    ],
    "guards_detected": [],
    "delegatecall_count": 1,
    "untrusted_delegatecall_count": 1
}
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
}