CVE-2026-20800
Notification API Leaks Private Repository Issue Titles After Collaborator Permission Revocation
6.5
MEDIUM
CVSS 3.1
EPSS 0.02%
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.
How to fix CVE-2026-20800
To remediate CVE-2026-20800, upgrade the affected package to a fixed version below.
- —upgrade to 1.25.4 or later
- —upgrade to 1.25.4 or later
- —upgrade to 1.25.4 or later
Is CVE-2026-20800 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 1.25.4
- from 0, < 1.25.4
- from 0, < 1.25.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |