CVE-2026-20800
Notification API Leaks Private Repository Issue Titles After Collaborator Permission Revocation
- State
- Published
- Severity
- 6.5 Medium
- Published
- Jan 22, 2026
- Updated
- Jan 23, 2026
- Reserved
- Jan 8, 2026
Description
Gitea's notification API does not re-validate repository access permissions when returning notification details. After a user's access to a private repository is revoked, they may still view issue and pull request titles through previously received notifications.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | CISA-ADP |
Weaknesses
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
Affected Products
| Product | Versions |
|---|---|
Gitea Open Source Git ServerGitea |
|
References
- GitHub Security Advisoryvendor-advisory
- GitHub Pull Request #36339patch
- Gitea v1.25.4 Releaserelease-notes
- Gitea v1.25.4 Release Blog Postrelease-notes
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