Incorrect authorization in GitLab Enterprise Edition and Gitlab Community Edition - CVE-2026-16301
Published: October 13, 2026
Vulnerability identifier: #VU154152
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-16301
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute CI/CD pipelines on protected branches without authorization.
The vulnerability exists due to improper authorization checks in the downstream pipeline creation service when creating downstream pipelines. A remote user can use the downstream pipeline creation service to execute CI/CD pipelines on protected branches without authorization.
Exploitation requires the Developer role.
Affected software
GitLab Enterprise Edition
Gitlab Community Edition
Gitlab Community Edition
How to mitigate CVE-2026-16301
Install security update from vendor's website.
GitLab Enterprise Edition - addressed in versions 19.2.8, 19.3.4, 19.4.2
Gitlab Community Edition - addressed in versions 19.2.8, 19.3.4, 19.4.2
Gitlab Community Edition - addressed in versions 19.2.8, 19.3.4, 19.4.2