CVE-2026-20779: Gitea Open Source Git Server

High severity, CVSS 7.1. EPSS: 0.5% chance of exploitation in the next 30 days.

Gitea versions from 1.5.0 before 1.26.3 have a TOTP single-use enforcement defect that allows a valid TOTP code to be accepted more than once across web two-factor authentication flows and the Basic Auth X-Gitea-OTP path.

Affected products

• Gitea Gitea Open Source Git Server: from 1.5.0, before 1.26.3 (fixed in 1.26.3)

Published 2026-07-03. Last modified 2026-07-07.