Critical 9.1Published Jan 22, 2026

CVE-2026-20912Gitea: Cross-Repository Authorization Bypass via Release Attachment Linking Leads to Private Attachment Disclosure

Updated under an hour ago (Oct 27, 2026, 4:30 PM ET)

Does this affect you?

It affects Gitea Open Source Git Server and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Gitea Open Source Git Server

Exploited in the last 30 days

Gitea does not properly validate repository ownership when linking attachments to releases. An attachment uploaded to a private repository could potentially be linked to a release in a different public repository, making it accessible to unauthorized users.

CVSS: 9.1 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness (CWE): CWE-284, CWE-639, CWE-283
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Gitea
NVD analysis: Modified
Record last updated: Jul 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Gitea Gitea Open Source Git Server gitea:open_source_git_server (from the name)	through 1.25.3	CNA record
Red Hat OpenShift Pipelines redhat:openshift_pipelines	1	CISA ADP
gitea gitea gitea:gitea	before 1.25.4	NVD

References

References

https://github.com/go-gitea/gitea/security/advisories/GHSA-vfmv-f93v-37mw	vendor-advisory, broken-link
https://github.com/go-gitea/gitea/pull/36320	patch, issue-tracking
https://github.com/go-gitea/gitea/pull/36355	patch, issue-tracking
https://github.com/go-gitea/gitea/releases/tag/v1.25.4	release-notes
https://blog.gitea.com/release-of-1.25.4/	release-notes
https://access.redhat.com/security/cve/CVE-2026-20912
https://bugzilla.redhat.com/show_bug.cgi?id=2432219
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-20912.json

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.