Inclusion of Functionality from Untrusted Control Sphere in GitLab Enterprise Edition - CVE-2026-18252
Published: August 27, 2026
Vulnerability identifier: #VU145874
CSH Severity: Medium
CVSS v4: 8.4 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-18252
CWE-ID: CWE-829
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to inclusion of functionality from untrusted control sphere in Duo Claude AI agent. A remote user can execute arbitrary commands in a CI context.
Affected software
GitLab Enterprise Edition
How to mitigate CVE-2026-18252
Install updates from vendor's website.
GitLab Enterprise Edition - addressed in versions 19.1.7, 19.2.5, 19.3.1