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.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-862"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/34xxx/CVE-2023-34234.json"
}{
"cpe": [
"cpe:2.3:a:openzeppelin:contracts:*:*:*:*:*:node.js:*:*",
"cpe:2.3:a:openzeppelin:contracts_upgradeable:*:*:*:*:*:node.js:*:*"
],
"extracted_events": [
{
"introduced": "4.3.0"
},
{
"fixed": "4.9.1"
}
],
"source": [
"CPE_RANGE",
"REFERENCES"
]
}