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Vulnerability · Published Jan 22, 2026 · Assigned by Gitea

CVE-2026-20897Gitea Git LFS Lock Deletion Broken Access Control (Cross-Repo IDOR)

Critical 9.1

In plain English

A critical-severity improper access control in Gitea Open Source Git Server from Gitea. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)0.5%top 60.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Gocode.gitea.io/gitea1.25.4GO-2026-4363
Gogithub.com/go-gitea/gitea1.25.4GHSA-393c-qgvj-3xph

Affected products (as reported)

VendorProductVersions
Gitea Gitea Open Source Git Server 0 – through 1.25.3

Weakness: CWE-284, CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References