SARA / Free Tools / CVE / CVE-2023-30542

CVE-2023-30542 — OpenZeppelin Contracts is a library for secure smart contract development

OpenZeppelin Contracts is a library for secure smart contract development. The proposal creation entrypoint (`propose`) in `GovernorCompatibilityBravo` allows the creation of proposals with a `signatures` array shorter than the `calldatas` array. This causes the additional elemen

CVSS
6.8 MEDIUM
EPSS
0.23% (top 54.10%)
CWE
CWE-20
Published
2023-04-16T07:10:13.474Z
Last modified
2025-02-06T16:05:37.183Z
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:L

01What is this vulnerability?

OpenZeppelin Contracts is a library for secure smart contract development. The proposal creation entrypoint (`propose`) in `GovernorCompatibilityBravo` allows the creation of proposals with a `signatures` array shorter than the `calldatas` array. This causes the additional elements of the latter to be ignored, and if the proposal succeeds the corresponding actions would eventually execute without…

02Affected products

VendorProductVersions
OpenZeppelinopenzeppelincontracts — >= 4.3.0, < 4.8.3

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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