Auth bypass in Gitlab
CVE-2026-3553
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.0 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user to access confidential issu…
Vulnerability class: Broken Access Control
EPSS: 0.002 (14.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Gitlab — versions 12.0, 18.11, 19.0
Weakness classification (CWE)
References
- cve@gitlab.com (Release Notes)
- cve@gitlab.com (Issue Tracking)
- cve@gitlab.com (Permissions Required, technical-description, permissions-required, exploit)
Frequently asked questions
- What is CVE-2026-3553?
- CVE-2026-3553 is a low-severity vulnerability in Gitlab, classified under Incorrect Authorization. CVSS score: 3.1/10. Published 2026-06-11.
- How severe is CVE-2026-3553?
- Low severity. CVSS v3 base score is 3.1 out of 10.