GitLab EE Authenticated Pipeline Execution RCE via Policy Records (18.1-19.4.2)
CVE-2026-81839 Published on October 13, 2026
Incorrect Authorization in GitLab
GitLab has remediated an issue in GitLab EE affecting all versions from 18.1 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an authenticated user to execute arbitrary CI/CD pipelines in a transferred project with the new group's privileges due to improper cleanup of scheduled pipeline execution policy records.
Vulnerability Analysis
CVE-2026-81839 can be exploited with network access, requires user interaction and a small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is an AuthZ Vulnerability?
The software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
CVE-2026-81839 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-81839
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Affected Versions
GitLab:- Version 18.1 and below 19.2.8 is affected.
- Version 19.3 and below 19.3.5 is affected.
- Version 19.4 and below 19.4.2 is affected.