Gitea Web Attachment Deletion: Cross-Repository Unauthorized Deletion via Missing Repo Ownership Check
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.4%
exploitation probability
0.4%top 69% of all CVEs
observed exploitation
nono source reports it
Gitea does not properly verify repository context when deleting attachments. A user who previously uploaded an attachment to a repository may be able to delete it after losing access to that repository by making the request through a different repository they can access.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected products
Gitea · Gitea Open Source Git ServerReferences
https://access.redhat.com/security/cve/CVE-2026-20736https://blog.gitea.com/release-of-1.25.4/https://bugzilla.redhat.com/show_bug.cgi?id=2432205https://github.com/go-gitea/gitea/pull/36320https://github.com/go-gitea/gitea/releases/tag/v1.25.4https://github.com/go-gitea/gitea/security/advisories/GHSA-jr6h-pwwp-c8g6https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-20736.json