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CVE-2021-41264

UUPSUpgradeable vulnerability in OpenZeppelin Contracts PUBLISHED

Description (CNA)

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).

Affected (CNA)

Vendor / productVersions
OpenZeppelin / openzeppelin-contractsaffected >= 4.1.0 < 4.3.2

CWE

CWE-665

References

ADP enrichment

CVE

No English description supplied.