What is CVE-2026-4672?

CVE-2026-4672 is a medium-severity vulnerability in Gitlab, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-07-29.

How severe is CVE-2026-4672?

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

Auth bypass in Gitlab

CVE-2026-4672

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.4 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an authenticated user with guest-role permissions to…

Vulnerability class: Broken Access Control

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:L/I:N/A:N.

Affected products

Gitlab — versions 18.4, 19.1, 19.2

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

cve@gitlab.com
cve@gitlab.com (technical-description, permissions-required, exploit)
cve@gitlab.com

Frequently asked questions

What is CVE-2026-4672?: CVE-2026-4672 is a medium-severity vulnerability in Gitlab, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-07-29.
How severe is CVE-2026-4672?: Medium severity. CVSS v3 base score is 4.3 out of 10.