Authorization bypass through user-controlled key in GitLab Enterprise Edition - CVE-2026-4868

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Main Vulnerability Database Vulnerabilities #VU132672

Authorization bypass through user-controlled key in GitLab Enterprise Edition - CVE-2026-4868

Published: May 28, 2026


Vulnerability identifier: #VU132672
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-4868
CWE-ID: CWE-639
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: GitLab, Inc
Affected software:
GitLab Enterprise Edition

Detailed vulnerability description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper user identity resolution when triggering Duo AI workflow runners. A remote user can cause specific Duo AI workflows to run under another user’s identity.


How to mitigate CVE-2026-4868

Install updates from vendor's website.

Sources