OpenZeppelin Contracts is a library for smart contract development. In affected versions upgradeable contracts using `UUPSUpgradeable` may be vulnerable to an attack affecting uninitialized implementation contracts. A fix is included in version 4.3.2 of `@openzeppelin/contracts` and `@openzeppelin/contracts-upgradeable`. For users unable to upgrade; initialize implementation contracts using `UUPSUpgradeable` by invoking the initializer function (usually called `initialize`). An example is provided [in the forum](https://forum.openzeppelin.com/t/security-advisory-initialize-uups-implementation-contracts/15301).
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2021-11-12T17:55:11

Updated: 2024-08-04T03:08:31.576Z

Reserved: 2021-09-15T00:00:00

Link: CVE-2021-41264

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2021-11-12T18:15:07.733

Modified: 2021-11-15T15:01:51.643

Link: CVE-2021-41264

cve-icon Redhat

No data.