Uniswap Permit2 audit

ABDK Consulting16 Nov 2022Code version: not recorded (see the report)

ABDK Consulting reviewed Uniswap (Uniswap Permit2 audit) on 16 Nov 2022: 59 findings, 1 critical; 48 marked fixed, 11 acknowledged.

1 critical finding, fixed

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Report hosted on GitHub.

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Findings59

Statuses are the security firm’s own, from its report.

Severity	Open	Acknowledged	Fixed
Critical	0	0	1
High	0	2	10
Medium	0	0	7
Low	0	9	30

HighSuboptimal in EIP712.solAcknowledged

The report gives no description here.

HighSuboptimal in Permit2Lib.solAcknowledged

The report gives no description here.

LowBad datatype in IAllowanceTransfer.solAcknowledged

The report gives no description here.

LowBad datatype in IAllowanceTransfer.solAcknowledged

The report gives no description here.

LowBad datatype in IAllowanceTransfer.solAcknowledged

The report gives no description here.

LowBad datatype in IAllowanceTransfer.solAcknowledged

The report gives no description here.

LowBad datatype in ISignatureTransfer.solAcknowledged

The report gives no description here.

LowBad datatype in ISignatureTransfer.solAcknowledged

The report gives no description here.

LowSuboptimal in Allowance.solAcknowledged

The report gives no description here.

LowSuboptimal in Permit2Lib.solAcknowledged

The report gives no description here.

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LowUnclear behavior in IAllowanceTransfer.solAcknowledged

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.

Part of Uniswap’s security record

Uniswap

Audits16 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.

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Security firm

ABDK Consulting

31 projects reviewed · 64 reports · latest Jan 2026

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