Auth bypass in Gitea
CVE-2026-20888
Gitea does not properly verify authorization when canceling scheduled auto-merges via the web interface. A user with read access to pull requests may be able to cancel auto-merges scheduled by other users.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (24.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 24.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Gitea
- Gitea Open Source Git Server — versions 0
Weakness classification (CWE)
References
- 88ee5874-cf24-4952-aea0-31affedb7ff2 (vendor-advisory, Broken Link)
- 88ee5874-cf24-4952-aea0-31affedb7ff2 (Patch, patch, Issue Tracking)
- 88ee5874-cf24-4952-aea0-31affedb7ff2 (Patch, patch, Issue Tracking)
- 88ee5874-cf24-4952-aea0-31affedb7ff2 (release-notes, Release Notes)
- 88ee5874-cf24-4952-aea0-31affedb7ff2 (release-notes, Release Notes)
Frequently asked questions
- What is CVE-2026-20888?
- CVE-2026-20888 is a medium-severity vulnerability in Gitea, classified under Improper Access Control. CVSS score: 4.3/10. Published 2026-01-22.
- How severe is CVE-2026-20888?
- Medium severity. CVSS v3 base score is 4.3 out of 10.