CVE-2021-39168
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
TimelockController vulnerability in OpenZeppelin Contracts
OpenZepplin is a library for smart contract development. In affected versions a vulnerability in TimelockController allowed an actor with the executor role to escalate privileges. Further details about the vulnerability will be disclosed at a later date. As a workaround revoke the executor role from accounts not strictly under the team's control. We recommend revoking all executors that are not also proposers. When applying this mitigation, ensure there is at least one proposer and executor remaining.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
openzeppelin-contracts-upgradeable
- Vendor
- OpenZeppelin
- Product
- openzeppelin-contracts-upgradeable
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| >=4.0.0, < 4.3.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| >=3.3.0, < 3.4.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| >= 3.3.0-solc-0.7, < 3.4.2-solc-0.7 | affected | Unavailable | Unavailable | Unavailable | None listed |