Auth bypass in GitLab
CVE-2026-81839
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 class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- gitlab.com/gitlab-org/gitlab/-/work_items/624150
- hackerone.com/reports/3925062 (technical-description, permissions-required, exploit)
- docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/
Frequently asked questions
- What is CVE-2026-81839?
- CVE-2026-81839 is a high-severity vulnerability in GitLab, classified under Incorrect Authorization. CVSS score: 7.7/10. Published 2026-10-13.
- How severe is CVE-2026-81839?
- High severity. CVSS v3 base score is 7.7 out of 10.