CVE-2026-20736
Gitea Web Attachment Deletion: Cross-Repository Unauthorized Deletion via Missing Repo Ownership Check
7.5
HIGH
CVSS 3.1
EPSS 0.02%
Description
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.
How to fix CVE-2026-20736
To remediate CVE-2026-20736, 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-2026-20736 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:N/VI:N/VA:L/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |