Analysis Run

019b3844-a7e6-708c-a6d2-9b0daaa3403a

complete

Chain ID

1

Address

0xef3ee85ef22ceb958a78b557753951cc2a6ab8dc

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
16617	artifact.fetch	complete	1 / 3	3 months ago
16618	tool.cast_disasm	complete	1 / 3	3 months ago
86652	analysis.bundle	complete	1 / 3	1 week ago
86653	capability.graph	complete	1 / 3	1 week ago
86654	detector.run	complete	1 / 3	1 week ago
86655	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

62

Flags

delegatecall_present proxy_like_runtime

View cast disassembly output

00000000: PUSH1 0x80
00000002: PUSH1 0x40
00000004: MSTORE
00000005: PUSH20 0xffffffffffffffffffffffffffffffffffffffff
0000001a: PUSH1 0x00
0000001c: SLOAD
0000001d: AND
0000001e: PUSH32 0x87e9052a00000000000000000000000000000000000000000000000000000000
0000003f: PUSH1 0x00
00000041: CALLDATALOAD
00000042: SUB
00000043: PUSH1 0x4f
00000045: JUMPI
00000046: DUP1
00000047: PUSH1 0x00
00000049: MSTORE
0000004a: PUSH1 0x20
0000004c: PUSH1 0x00
0000004e: RETURN
0000004f: JUMPDEST
00000050: CALLDATASIZE
00000051: PUSH1 0x00
00000053: DUP1
00000054: CALLDATACOPY
00000055: PUSH1 0x00
00000057: DUP1
00000058: CALLDATASIZE
00000059: PUSH1 0x00
0000005b: DUP5
0000005c: GAS
0000005d: DELEGATECALL
0000005e: RETURNDATASIZE
0000005f: PUSH1 0x00
00000061: DUP1
00000062: RETURNDATACOPY
00000063: DUP1
00000064: PUSH1 0x00
00000066: DUP2
00000067: EQ
00000068: PUSH1 0x6f
0000006a: JUMPI
0000006b: RETURNDATASIZE
0000006c: PUSH1 0x00
0000006e: RETURN
0000006f: JUMPDEST
00000070: RETURNDATASIZE
00000071: PUSH1 0x00
00000073: REVERT
00000074: INVALID
00000075: LOG2
00000076: PUSH5 0x6970667358
0000007c: UNKNOWN(0x22)
0000007d: SLT
0000007e: KECCAK256
0000007f: PUSH12 0x87e9571aaea9ed523b568c54
0000008c: UNKNOWN(0x4F)
0000008d: CLZ
0000008e: UNKNOWN(0x27)
0000008f: PUSH1 0x5a
00000091: SWAP15
00000092: PUSH1 0x76
00000094: 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 trace_id: 0x01d20464b76b111d6eece28562ed044c249cc846b6cf748c78d8ca8edaa1e99f call_targets: 0x3718f4bf9140f333bca79cb279f09f0bb8e6ddee target_varies: no classification: constant_target validation_json { "sink": "DELEGATECALL", "errors": 0, "status": "sink_reached", "attempts": 1, "trace_id": "0x01d20464b76b111d6eece28562ed044c249cc846b6cf748c78d8ca8edaa1e99f", "confirmed": false, "trace_mode": "callTracer", "call_targets": [ "0x3718f4bf9140f333bca79cb279f09f0bb8e6ddee" ], "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": 93, "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: 0x01d20464b76b111d6eece28562ed044c249cc846b6cf748c78d8ca8edaa1e99f

call_targets: 0x3718f4bf9140f333bca79cb279f09f0bb8e6ddee

target_varies: no

classification: constant_target

validation_json

{
    "sink": "DELEGATECALL",
    "errors": 0,
    "status": "sink_reached",
    "attempts": 1,
    "trace_id": "0x01d20464b76b111d6eece28562ed044c249cc846b6cf748c78d8ca8edaa1e99f",
    "confirmed": false,
    "trace_mode": "callTracer",
    "call_targets": [
        "0x3718f4bf9140f333bca79cb279f09f0bb8e6ddee"
    ],
    "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": 93,
            "opcode": "DELEGATECALL",
            "returndata_checked": null,
            "value_expression_category": "n/a",
            "target_expression_category": "computed"
        }
    ],
    "guards_detected": [],
    "delegatecall_count": 1,
    "untrusted_delegatecall_count": 1
}