Auth bypass in Gitlab

CVE-2025-11865

An issue has been discovered in GitLab EE affecting all versions from 18.1 before 18.3.6, 18.4 before 18.4.4, and 18.5 before 18.5.2 that, under certain circumstances, could have allowed an attacker to remove Duo flows of another user.

Vulnerability class: Broken Access Control

EPSS: 0.002 (12.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

  • Gitlab — versions 18.1, 18.4, 18.5

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-11865?
CVE-2025-11865 is a medium-severity vulnerability in Gitlab, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2025-11-15.
How severe is CVE-2025-11865?
Medium severity. CVSS v3 base score is 4.3 out of 10.