CVEvulnerability

CVE-2022-39384

5.6 MEDIUM Published 2022-11-04 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-11-04
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.6 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS 3.1 ([email protected])
5.6 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Weaknesses
CWE-665

Description

OpenZeppelin Contracts is a library for secure smart contract development. Before version 4.4.1 but after 3.2.0, initializer functions that are invoked separate from contract creation (the most prominent example being minimal proxies) may be reentered if they make an untrusted non-view external call. Once an initializer has finished running it can never be re-executed. However, an exception put in place to support multiple inheritance made reentrancy possible in the scenario described above, breaking the expectation that there is a single execution. Note that upgradeable proxies are commonly initialized together with contract creation, where reentrancy is not feasible, so the impact of this issue is believed to be minor. This issue has been patched, please upgrade to version 4.4.1. As a workaround, avoid untrusted external calls during initialization.

Affected configurations

• openzeppelin contracts (>= 3.2.0 < 4.4.1) • openzeppelin contracts upgradeable (>= 3.2.0 < 4.4.1)

Related

Weakness · CWE (1)

  • CWE-665 Improper Initialization weakness

References