What is CVE-2026-1751?

CVE-2026-1751 is a low-severity vulnerability in Gitlab, classified under Missing Authorization. CVSS score: 3.1/10. Published 2026-02-02.

How severe is CVE-2026-1751?

Low severity. CVSS v3 base score is 3.1 out of 10.

Auth bypass in Gitlab

CVE-2026-1751

A vulnerability has been discovered in GitLab CE/EE affecting all versions starting with 16.8 before 18.5.0 that could have allowed unauthorized edits to merge request approval rules under certain conditions.

Vulnerability class: Broken Access Control

EPSS: 0.002 (9.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

Gitlab — versions 16.8

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

cve@gitlab.com (issue-tracking, Exploit, permissions-required, Issue Tracking, Vendor Advisory)
cve@gitlab.com (Permissions Required, technical-description, permissions-required, exploit)

Frequently asked questions

What is CVE-2026-1751?: CVE-2026-1751 is a low-severity vulnerability in Gitlab, classified under Missing Authorization. CVSS score: 3.1/10. Published 2026-02-02.
How severe is CVE-2026-1751?: Low severity. CVSS v3 base score is 3.1 out of 10.