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TI-2023-14376 Aliases CVE-2023-30541GHSA-mx2q-35m2-x2rh

TransparentUpgradeableProxy clashing selector calls may not be delegated in @openzeppelin/contracts

Priority LOW 32CWE-436Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

OpenZeppelin Contracts is a library for secure smart contract development. A function in the implementation contract may be inaccessible if its selector clashes with one of the proxy's own selectors. Specifically, if the clashing function has a different signature with incompatible ABI encoding, the proxy could revert while attempting to decode the arguments from calldata. The probability of an accidental clash is negligible, but one could be caused deliberately and could cause a reduction in availability. The issue has been fixed in version 4.8.3. As a workaround if a function appears to be inaccessible for this reason, it may be possible to craft the calldata such that ABI decoding does not fail at the proxy and the function is properly proxied through.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00812 57th percentileScored 2026-11-07
Fix Fixed @openzeppelin/contracts (npm): 4.8.3@openzeppelin/contracts-upgradeable (npm): 4.8.3

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

VendorProductAffected versionsFixed inStatusSource
OpenZeppelinopenzeppelin-contracts@openzeppelin/contracts: >= 3.2.0, < 4.8.3; @openzeppelin/contracts-upgradeable: >=3.2.0, <4.8.3—No fix listedCNA
—@openzeppelin/contracts (npm)3.2.0 to before 4.8.34.8.3Patch availableGHSA-mx2q-35m2-x2rh
—@openzeppelin/contracts-upgradeable (npm)3.2.0 to before 4.8.34.8.3Patch availableGHSA-mx2q-35m2-x2rh
  • openzeppelin-contracts VendorOpenZeppelin Affected @openzeppelin/contracts: >= 3.2.0, < 4.8.3; @openzeppelin/contracts-upgradeable: >=3.2.0, <4.8.3 Fixed in — No fix listed CNA
  • @openzeppelin/contracts (npm) Vendor— Affected 3.2.0 to before 4.8.3 Fixed in 4.8.3 Patch available GHSA-mx2q-35m2-x2rh
  • @openzeppelin/contracts-upgradeable (npm) Vendor— Affected 3.2.0 to before 4.8.3 Fixed in 4.8.3 Patch available GHSA-mx2q-35m2-x2rh

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:openzeppelin:contracts:*:*:*:*:*:node.js:*:*3.2.0 to before 4.8.3VulnerableOpenZeppelin
cpe:2.3:a:openzeppelin:contracts_upgradeable:*:*:*:*:*:node.js:*:*3.2.0 to before 4.8.3VulnerableOpenZeppelin
  • cpe:2.3:a:openzeppelin:contracts:*:*:*:*:*:node.js:*:* Versions 3.2.0 to before 4.8.3 Vulnerable ·OpenZeppelin
  • cpe:2.3:a:openzeppelin:contracts_upgradeable:*:*:*:*:*:node.js:*:* Versions 3.2.0 to before 4.8.3 Vulnerable ·OpenZeppelin

Remediation

  • Fix · GHSA-mx2q-35m2-x2rh @openzeppelin/contracts (npm) Fixed in 4.8.3 Advisory →
  • Fix · GHSA-mx2q-35m2-x2rh @openzeppelin/contracts-upgradeable (npm) Fixed in 4.8.3 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-30541
  2. 2026-10-03 Alias added: GHSA-mx2q-35m2-x2rh

References

Patch 1

Advisory 2

Other 3

  • 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