CVE-2026-103670 Gitea - Broken Access Control

Gitea contains a broken access control vulnerability caused by improper concurrency group run cancellation logic in Actions, letting fork pull request users cancel trusted in-progress runs without approval, exploit requires fork pull request creation.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.21% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published
6 October 2026
Updated
15 October 2026
Weakness
CWE-667

Vendor fix

Update to the latest version with concurrency group run cancellation fixes.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs