Vulnerability Description
OpenZeppelin Contracts is a library for secure smart contract development. This issue concerns instances of Governor that use the module `GovernorVotesQuorumFraction`, a mechanism that determines quorum requirements as a percentage of the voting token's total supply. In affected instances, when a proposal is passed to lower the quorum requirements, past proposals may become executable if they had been defeated only due to lack of quorum, and the number of votes it received meets the new quorum requirement. Analysis of instances on chain found only one proposal that met this condition, and we are actively monitoring for new occurrences of this particular issue. This issue has been patched in v4.7.2. Users are advised to upgrade. Users unable to upgrade should consider avoiding lowering quorum requirements if a past proposal was defeated for lack of quorum.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openzeppelin | Contracts | >= 4.3.0, < 4.7.2 |
| Openzeppelin | Contracts Upgradeable | >= 4.3.0, < 4.7.2 |
Related Weaknesses (CWE)
References
- https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3561PatchThird Party Advisory
- https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-Third Party Advisory
- https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3561PatchThird Party Advisory
- https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-Third Party Advisory
FAQ
What is CVE-2022-31198?
CVE-2022-31198 is a vulnerability with a CVSS score of 7.5 (HIGH). OpenZeppelin Contracts is a library for secure smart contract development. This issue concerns instances of Governor that use the module `GovernorVotesQuorumFraction`, a mechanism that determines quor...
How severe is CVE-2022-31198?
CVE-2022-31198 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-31198?
Check the references section above for vendor advisories and patch information. Affected products include: Openzeppelin Contracts, Openzeppelin Contracts Upgradeable.