What is CVE-2026-5296?

CVE-2026-5296 is a medium-severity vulnerability in Gitlab, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-05-27.

How severe is CVE-2026-5296?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Gitlab

CVE-2026-5296

GitLab has remediated an issue in GitLab EE affecting all versions from 18.7 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that when foundational flows were enabled at the group level, could have allowed an authenticated use…

Vulnerability class: Broken Access Control

EPSS: 0.000 (1.7th 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 19.0.0, 18.11, 19.0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

cve@gitlab.com (Broken Link)
cve@gitlab.com (Permissions Required, technical-description, permissions-required, exploit)
cve@gitlab.com (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2026-5296?: CVE-2026-5296 is a medium-severity vulnerability in Gitlab, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-05-27.
How severe is CVE-2026-5296?: Medium severity. CVSS v3 base score is 4.3 out of 10.