CVE-2021-45331

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-02-09 · updated 2026-06-17
Weakness: CWE-287

Description

An Authentication Bypass vulnerability exists in Gitea before 1.5.0, which could let a malicious user gain privileges. If captured, the TOTP code for the 2FA can be submitted correctly more than once.

Affected products

Gitea Open Source Git Server: before 1.5.0 — fixed in 1.5.0

How to fix

Upgrade to a fixed version: Gitea Open Source Git Server 1.5.0. Check the vendor advisory for mitigations.

References

https://blog.gitea.io/2018/08/gitea-1.5.0-is-released/
https://github.com/go-gitea/gitea/pull/3878
https://blog.gitea.io/2018/08/gitea-1.5.0-is-released/
https://github.com/go-gitea/gitea/pull/3878

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