CVE-2021-46320
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-46320
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-46320.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-46320
- Aliases
- Related
- Published
- 2022-02-04T12:15:07Z
- Modified
- 2025-10-21T06:43:00.676368Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
In OpenZeppelin <=v4.4.0, 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, breaking the expectation that there is a single execution.
- References