Uniswap Permit2
ChainSecurity reviewed Uniswap (Uniswap Permit2) on 18 Nov 2022: 3 findings, 0 critical; 2 marked fixed, 1 acknowledged.
No open critical findings
Open the reportOpen Uniswap’s security record
Report hosted on chainsecurity.com.
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Findings3
Statuses are the security firm’s own, from its report.
| Severity | Open | Acknowledged | Fixed |
|---|---|---|---|
| Critical | 0 | 0 | 0 |
| High | 0 | 0 | 1 |
| Medium | 0 | 1 | 0 |
| Low | 0 | 0 | 1 |
HighPermit2Lib Argument CastingFixed
The report gives no description here.
LowCALL to DOMAIN_SEPARATOR()Fixed
The report gives no description here.
Contracts in scope
No deployed address is recorded for this audit.
The report names a repository or files. Open the report to see its scope.
Repository and files the report names (13)
- Permit2.sol
- interfaces/IAllowanceTransfer.sol
- libraries/PermitHash.sol
- libraries/SignatureVerification.sol
- interfaces/IERC1271.sol
- libraries/Allowance.sol
- interfaces/IDAIPermit.sol
- EIP712.sol
- interfaces/ISignatureTransfer.sol
- AllowanceTransfer.sol
- PermitErrors.sol
- libraries/Permit2Lib.sol
- SignatureTransfer.sol
Part of Uniswap’s security record
UniswapAudits16 audits by 5 firmsLast audit Aug 2026, by Cantina.
Critical findingsNo open critical findingsAcross the 16 reports, 7 critical findings were reported. Each is marked fixed by the firm that reported it.
IncidentIncident 17 Apr 2020Source: De.Fi incident database.
Open Uniswap’s security recordSecurity firm
ChainSecurity81 projects reviewed · 286 reports · latest Sep 2026
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