Vulnerability Description
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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gitea | Gitea | < 1.25.4 |
Related Weaknesses (CWE)
References
- https://blog.gitea.com/release-of-1.25.4/Release Notes
- https://github.com/go-gitea/gitea/pull/36320Issue TrackingPatch
- https://github.com/go-gitea/gitea/pull/36355Issue TrackingPatch
- https://github.com/go-gitea/gitea/releases/tag/v1.25.4Release Notes
- https://github.com/go-gitea/gitea/security/advisories/GHSA-vfmv-f93v-37mwBroken Link
FAQ
What is CVE-2026-20912?
CVE-2026-20912 is a vulnerability with a CVSS score of 9.1 (CRITICAL). 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 publi...
How severe is CVE-2026-20912?
CVE-2026-20912 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-20912?
Check the references section above for vendor advisories and patch information. Affected products include: Gitea Gitea.