TI-2022-13213 Aliases CVE-2022-31172 GHSA-4g63-c64m-25w9

OpenZeppelin Contracts's SignatureChecker may revert on invalid EIP-1271 signers

LOW 39CWE-20Published 2022-07-21 · Updated 2025-04-23

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: None · High · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-347.

Summary

OpenZeppelin Contracts is a library for smart contract development. Versions 4.1.0 until 4.7.1 are vulnerable to the SignatureChecker reverting. `SignatureChecker.isValidSignatureNow` is not expected to revert. However, an incorrect assumption about Solidity 0.8's `abi.decode` allows some cases to revert, given a target contract that doesn't implement EIP-1271 as expected. The contracts that may be affected are those that use `SignatureChecker` to check the validity of a signature and handle invalid signatures in a way other than reverting. The issue was patched in version 4.7.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00503 43rd percentileScored 2026-11-07

Fix Fixed openzeppelin-contracts (OpenZeppelin): 4.7.1@openzeppelin/contracts (npm): 4.7.1+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
OpenZeppelin	openzeppelin-contracts	4.1.0 to before 4.7.1	4.7.1	Patch available	CNA
—	@openzeppelin/contracts (npm)	4.1.0 to before 4.7.1	4.7.1	Patch available	GHSA-4g63-c64m-25w9
—	@openzeppelin/contracts-upgradeable (npm)	4.1.0 to before 4.7.1	4.7.1	Patch available	GHSA-4g63-c64m-25w9

openzeppelin-contracts VendorOpenZeppelin Affected 4.1.0 to before 4.7.1 Fixed in 4.7.1 Patch available CNA
@openzeppelin/contracts (npm) Vendor— Affected 4.1.0 to before 4.7.1 Fixed in 4.7.1 Patch available GHSA-4g63-c64m-25w9
@openzeppelin/contracts-upgradeable (npm) Vendor— Affected 4.1.0 to before 4.7.1 Fixed in 4.7.1 Patch available GHSA-4g63-c64m-25w9

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:openzeppelin:contracts::::::node.js::*	4.1.0 to before 4.7.1	Vulnerable	OpenZeppelin

cpe:2.3:a:openzeppelin:contracts:*:*:*:*:*:node.js:*:* Versions 4.1.0 to before 4.7.1 Vulnerable ·OpenZeppelin

Remediation

Fix · CNA openzeppelin-contracts (OpenZeppelin) Fixed in 4.7.1
Fix · GHSA-4g63-c64m-25w9 @openzeppelin/contracts (npm) Fixed in 4.7.1 Advisory →
Fix · GHSA-4g63-c64m-25w9 @openzeppelin/contracts-upgradeable (npm) Fixed in 4.7.1 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2022-31172
2026-10-03 Alias added: GHSA-4g63-c64m-25w9

References

Patch 1

https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3552

Advisory 2

TI-2022-13196 OpenZeppelin Contracts for Cairo account cannot process transactions on Goerli CVSS 3.1MEDIUM 6.5
TI-2021-16554 TimelockController vulnerability in OpenZeppelin Contracts CVSS 3.1CRITICAL 10.0
TI-2021-16553 TimelockController vulnerability in OpenZeppelin Contracts CVSS 3.1CRITICAL 10.0
TI-2021-18096 UUPSUpgradeable vulnerability in OpenZeppelin Contracts CVSS 3.1CRITICAL 9.8
TI-2022-13238 GovernorVotesQuorumFraction updates to quorum may affect past defeated proposals in @openzeppelin/contracts CVSS 3.1HIGH 7.5
TI-2022-13212 OpenZeppelin Contracts's ERC165Checker may revert instead of returning false CVSS 3.1HIGH 7.5

See all 19 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences