CVE-2026-20912: Gitea

Critical severity, CVSS 9.1. EPSS: 0.5% chance of exploitation in the next 30 days.

Gitea does not properly validate repository ownership when linking attachments to releases. An attachment uploaded to a private repository could potentially be linked to a release in a different public repository, making it accessible to unauthorized users.

Affected products

• Gitea Gitea: before 1.25.4 (fixed in 1.25.4)

Published 2026-01-22. Last modified 2026-07-15.