Auth bypass in Gitlab

CVE-2026-2900

GitLab has remediated an issue in GitLab EE affecting all versions from 16.10 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that when instance-level approval rule editing prevention was enabled, could have allowed an authen…

Vulnerability class: Broken Access Control

EPSS: 0.000 (3.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N.

Affected products

  • Gitlab — versions 16.10, 18.10, 18.11

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-2900?
CVE-2026-2900 is a low-severity vulnerability in Gitlab, classified under Missing Authorization. CVSS score: 2.7/10. Published 2026-05-14.
How severe is CVE-2026-2900?
Low severity. CVSS v3 base score is 2.7 out of 10.