Analysis Run

019b3844-9a91-73f2-adb7-4afc4d66600e

complete

Chain ID

1

Address

0xfbce5f52fc21296ae42ee000dfdfdc7fecaaa2fd

Block Number

—

Created

Fri, Dec 19, 2025 8:19 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

0

Validated

0

Source

Bytecode only

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
14283	artifact.fetch	complete	1 / 3	3 months ago
14284	tool.cast_disasm	complete	1 / 3	3 months ago
85080	analysis.bundle	complete	1 / 3	1 week ago
85081	capability.graph	complete	1 / 3	1 week ago
85082	detector.run	complete	1 / 3	1 week ago
85083	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

No codex job recorded yet.

Opcode Heuristics

tool.cast_disasm

Delegatecall

1

Selfdestruct

0

CREATE2

0

CALL-family (heavy)

0

EXT*/BALANCE

0

Total opcodes

126

Flags

delegatecall_present

View cast disassembly output

00000000: PUSH1 0x80
00000002: PUSH1 0x40
00000004: MSTORE
00000005: PUSH1 0x04
00000007: CALLDATASIZE
00000008: LT
00000009: PUSH1 0x1f
0000000b: JUMPI
0000000c: PUSH1 0x00
0000000e: CALLDATALOAD
0000000f: PUSH1 0xe0
00000011: SHR
00000012: DUP1
00000013: PUSH4 0x5c60da1b
00000018: EQ
00000019: PUSH1 0x6b
0000001b: JUMPI
0000001c: PUSH1 0x25
0000001e: JUMP
0000001f: JUMPDEST
00000020: CALLDATASIZE
00000021: PUSH1 0x25
00000023: JUMPI
00000024: STOP
00000025: JUMPDEST
00000026: PUSH1 0x40
00000028: MLOAD
00000029: PUSH32 0x0000000000000000000000008114f33b87128dd938f4b69966b7b11c0deb069f
0000004a: SWAP1
0000004b: CALLDATASIZE
0000004c: PUSH1 0x00
0000004e: DUP3
0000004f: CALLDATACOPY
00000050: PUSH1 0x00
00000052: DUP1
00000053: CALLDATASIZE
00000054: DUP4
00000055: DUP6
00000056: GAS
00000057: DELEGATECALL
00000058: RETURNDATASIZE
00000059: DUP1
0000005a: PUSH1 0x00
0000005c: DUP5
0000005d: RETURNDATACOPY
0000005e: DUP2
0000005f: DUP1
00000060: ISZERO
00000061: PUSH1 0x67
00000063: JUMPI
00000064: DUP2
00000065: DUP5
00000066: RETURN
00000067: JUMPDEST
00000068: DUP2
00000069: DUP5
0000006a: REVERT
0000006b: JUMPDEST
0000006c: CALLVALUE
0000006d: DUP1
0000006e: ISZERO
0000006f: PUSH1 0x76
00000071: JUMPI
00000072: PUSH1 0x00
00000074: DUP1
00000075: REVERT
00000076: JUMPDEST
00000077: POP
00000078: PUSH1 0x7d
0000007a: PUSH1 0x91
0000007c: JUMP
0000007d: JUMPDEST
0000007e: PUSH1 0x40
00000080: MLOAD
00000081: PUSH1 0x88
00000083: SWAP2
00000084: SWAP1
00000085: PUSH1 0xb5
00000087: JUMP
00000088: JUMPDEST
00000089: PUSH1 0x40
0000008b: MLOAD
0000008c: DUP1
0000008d: SWAP2
0000008e: SUB
0000008f: SWAP1
00000090: RETURN
00000091: JUMPDEST
00000092: PUSH32 0x0000000000000000000000008114f33b87128dd938f4b69966b7b11c0deb069f
000000b3: DUP2
000000b4: JUMP
000000b5: JUMPDEST
000000b6: PUSH1 0x01
000000b8: PUSH1 0x01
000000ba: PUSH1 0xa0
000000bc: SHL
000000bd: SUB
000000be: SWAP2
000000bf: SWAP1
000000c0: SWAP2
000000c1: AND
000000c2: DUP2
000000c3: MSTORE
000000c4: PUSH1 0x20
000000c6: ADD
000000c7: SWAP1
000000c8: JUMP
000000c9: INVALID
000000ca: LOG2
000000cb: PUSH5 0x6970667358
000000d1: UNKNOWN(0x22)
000000d2: SLT
000000d3: KECCAK256
000000d4: UNKNOWN(0xDD)
000000d5: UNKNOWN(0xAE)
000000d6: LOG2
000000d7: UNKNOWN(0xEA)
000000d8: LOG1
000000d9: PUSH25 0x1740bac90ac9e08409bcbaa52598ae7608eb6e94208e9250c3
000000f3: UNKNOWN(0xBF)
000000f4: PUSH5 0x736f6c6343
000000fa: STOP
000000fb: ADDMOD
000000fc: ADD
000000fd: STOP
000000fe: CALLER

View stderr

Warning: This is a nightly build of Foundry. It is recommended to use the latest stable version. To mute this warning set `FOUNDRY_DISABLE_NIGHTLY_WARNING` in your environment.

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: 0x4450a034421dc0d29b369401cfb00a520b4ac6a1980b9a87cd1da665271164c3 validation_json { "sink": "DELEGATECALL", "errors": 0, "status": "unknown", "attempts": 12, "trace_id": "0x4450a034421dc0d29b369401cfb00a520b4ac6a1980b9a87cd1da665271164c3", "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": "0x5c60da1b", "selector": "0x5c60da1b", "calldata_variants": [ "0x5c60da1b", "0x5c60da1b0000000000000000000000000000000000000000000000000000000000000000" ] } ] } evidence_json { "examples": [ { "pc": 87, "opcode": "DELEGATECALL", "returndata_checked": null, "value_expression_category": "n/a", "target_expression_category": "computed" } ], "guards_detected": [], "delegatecall_count": 1, "untrusted_delegatecall_count": 1 }

Severity

Category

Tool

Title

Confidence

Validated

Confirmed

Details

critical

upgradeability

detector

Untrusted DELEGATECALL target reachable

70

no

view

trace_id: 0x4450a034421dc0d29b369401cfb00a520b4ac6a1980b9a87cd1da665271164c3

validation_json

{
    "sink": "DELEGATECALL",
    "errors": 0,
    "status": "unknown",
    "attempts": 12,
    "trace_id": "0x4450a034421dc0d29b369401cfb00a520b4ac6a1980b9a87cd1da665271164c3",
    "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": "0x5c60da1b",
            "selector": "0x5c60da1b",
            "calldata_variants": [
                "0x5c60da1b",
                "0x5c60da1b0000000000000000000000000000000000000000000000000000000000000000"
            ]
        }
    ]
}

evidence_json

{
    "examples": [
        {
            "pc": 87,
            "opcode": "DELEGATECALL",
            "returndata_checked": null,
            "value_expression_category": "n/a",
            "target_expression_category": "computed"
        }
    ],
    "guards_detected": [],
    "delegatecall_count": 1,
    "untrusted_delegatecall_count": 1
}