What is CVE-2025-11340?

CVE-2025-11340 is a high-severity vulnerability in Gitlab, classified under Incorrect Authorization. CVSS score: 7.7/10. Published 2025-10-09.

How severe is CVE-2025-11340?

High severity. CVSS v3 base score is 7.7 out of 10.

Auth bypass in Gitlab

CVE-2025-11340

GitLab has remediated an issue in GitLab EE affecting all versions from 18.3 to 18.3.4, 18.4 to 18.4.2 that, under certain conditions, could have allowed authenticated users with read-only API tokens to perform unauthorized write operations on vulnerability records by exploiting incorrectly scoped GraphQL mutations.

Vulnerability class: Broken Access Control

EPSS: 0.003 (27.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N.

Affected products

Gitlab — versions 18.3, 18.4

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

cve@gitlab.com (Release Notes, Vendor Advisory)
cve@gitlab.com (issue-tracking, permissions-required, Broken Link)

Frequently asked questions

What is CVE-2025-11340?: CVE-2025-11340 is a high-severity vulnerability in Gitlab, classified under Incorrect Authorization. CVSS score: 7.7/10. Published 2025-10-09.
How severe is CVE-2025-11340?: High severity. CVSS v3 base score is 7.7 out of 10.