CVE-2023-34234
CVE-2023-34234 · Governor proposal creation may be blocked by frontrunning in OpenZeppelin
This page contains facts from public vulnerability sources. Check the original advisory before updating.
OpenZeppelin Contracts is a library for smart contract development. By frontrunning the creation of a proposal, an attacker can become the proposer and gain the ability to cancel it. The attacker can do this repeatedly to try to prevent a proposal from being proposed at all. This impacts the `Governor` contract in v4.9.0 only, and the `GovernorCompatibilityBravo` contract since v4.3.0. This problem has been patched in 4.9.1 by introducing opt-in frontrunning protection. Users are advised to upgrade. Users unable to upgrade may submit the proposal creation transaction to an endpoint with frontrunning protection as a workaround.
CVSS 5.3 · Medium · EPSS 0.6% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
openzeppelin-contracts
- Versions
- >=4.3.0, < 4.9.1: Affected
No fix published
@openzeppelin/contracts npm
- Affected ranges
- SEMVER: ≥ 4.3.0, < 4.9.1
Update to 4.9.1
@openzeppelin/contracts-upgradeable npm
- Affected ranges
- SEMVER: ≥ 4.3.0, < 4.9.1
Update to 4.9.1