Analysis Run

019b3844-ba9b-70bb-b697-add74806dc45

complete

Chain ID

1

Address

0x647256f12b4e4c1fff35d1de8f6bbdcc4852ef95

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
20045	artifact.fetch	complete	1 / 3	3 months ago
20046	tool.cast_disasm	complete	1 / 3	3 months ago
110190	analysis.bundle	complete	1 / 3	1 week ago
110191	capability.graph	complete	1 / 3	1 week ago
110192	detector.run	complete	1 / 3	1 week ago
110193	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

63

Flags

delegatecall_present

View cast disassembly output

00000000: PUSH1 0x80
00000002: PUSH1 0x40
00000004: MSTORE
00000005: CALLDATASIZE
00000006: PUSH1 0x0a
00000008: JUMPI
00000009: STOP
0000000a: JUMPDEST
0000000b: CALLVALUE
0000000c: DUP1
0000000d: ISZERO
0000000e: PUSH1 0x15
00000010: JUMPI
00000011: PUSH1 0x00
00000013: DUP1
00000014: REVERT
00000015: JUMPDEST
00000016: POP
00000017: PUSH1 0x40
00000019: MLOAD
0000001a: PUSH32 0x00000000000000000000000080d0f44d6c1563de6ba356aa8dfe7abdbe8a174a
0000003b: SWAP1
0000003c: CALLDATASIZE
0000003d: DUP1
0000003e: PUSH1 0x00
00000040: DUP4
00000041: CALLDATACOPY
00000042: PUSH1 0x00
00000044: DUP1
00000045: DUP3
00000046: DUP5
00000047: DUP7
00000048: GAS
00000049: DELEGATECALL
0000004a: RETURNDATASIZE
0000004b: SWAP2
0000004c: POP
0000004d: DUP2
0000004e: PUSH1 0x00
00000050: DUP5
00000051: RETURNDATACOPY
00000052: DUP1
00000053: DUP1
00000054: ISZERO
00000055: PUSH1 0x5b
00000057: JUMPI
00000058: DUP3
00000059: DUP5
0000005a: RETURN
0000005b: JUMPDEST
0000005c: DUP3
0000005d: DUP5
0000005e: REVERT
0000005f: INVALID
00000060: LOG2
00000061: PUSH5 0x6970667358
00000067: UNKNOWN(0x22)
00000068: SLT
00000069: KECCAK256
0000006a: UNKNOWN(0xC4)
0000006b: LOG4
0000006c: PUSH8 0x17f67197616503d8
00000075: PUSH32

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 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": 73, "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

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": 73,
            "opcode": "DELEGATECALL",
            "returndata_checked": null,
            "value_expression_category": "n/a",
            "target_expression_category": "computed"
        }
    ],
    "guards_detected": [],
    "delegatecall_count": 1,
    "untrusted_delegatecall_count": 1
}