Reliance on Untrusted Inputs in a Security Decision in GitLab Enterprise Edition - CVE-2026-105458
Published: October 13, 2026
Vulnerability identifier: #VU154165
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-105458
CWE-ID: CWE-807
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to obtain a GitLab Duo Agent Platform token that bypasses governance controls.
The vulnerability exists due to reliance on untrusted input in a security decision in GitLab Duo Agent Platform when authorizing token issuance. A remote user can exploit the token issuance decision to obtain a GitLab Duo Agent Platform token that bypasses governance controls.
Exploitation requires a specific granular permission that the advisory does not identify.
Affected software
GitLab Enterprise Edition
How to mitigate CVE-2026-105458
Install security update from vendor's website.
GitLab Enterprise Edition - addressed in versions 19.2.8, 19.3.4, 19.4.2