CVE-2026-20897
Gitea Git LFS Lock Deletion Broken Access Control (Cross-Repo IDOR)
9.1
CRITICAL
CVSS 3.1
EPSS 0.02%
Description
Gitea does not properly validate repository ownership when deleting Git LFS locks. A user with write access to one repository may be able to delete LFS locks belonging to other repositories.
How to fix CVE-2026-20897
To remediate CVE-2026-20897, upgrade the affected package to a fixed version below.
- Bitnami/gitea—upgrade to 1.25.4 or later
- —upgrade to 1.25.4 or later
- —upgrade to 1.25.4 or later
Is CVE-2026-20897 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:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |