Improper Authorization in GitLab Enterprise Edition and Gitlab Community Edition - CVE-2026-15423
Published: August 13, 2026
Vulnerability identifier: #VU142364
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-2026-15423
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute CI/CD pipelines on a protected branch without required push permissions.
The vulnerability exists due to improper access control in CI/CD pipeline API when validating pipeline references. A remote user can submit a pipeline request to execute CI/CD pipelines on a protected branch without required push permissions.
The issue affects users with developer-role permissions.
Affected software
GitLab Enterprise Edition
Gitlab Community Edition
Gitlab Community Edition
How to mitigate CVE-2026-15423
Install security update from vendor's website.
GitLab Enterprise Edition - addressed in versions 19.0.6, 19.1.4, 19.2.2
Gitlab Community Edition - addressed in versions 19.0.6, 19.1.4, 19.2.2
Gitlab Community Edition - addressed in versions 19.0.6, 19.1.4, 19.2.2