What is CVE-2026-4527?

CVE-2026-4527 is a medium-severity vulnerability in Gitlab, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.5/10. Published 2026-05-14.

How severe is CVE-2026-4527?

Medium severity. CVSS v3 base score is 6.5 out of 10.

CSRF in Gitlab

CVE-2026-4527

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.10 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticated user to create unauthorized Jira subscriptions for a…

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.000 (1.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

Affected products

Gitlab — versions 11.10, 18.10, 18.11

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

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

Frequently asked questions

What is CVE-2026-4527?: CVE-2026-4527 is a medium-severity vulnerability in Gitlab, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.5/10. Published 2026-05-14.
How severe is CVE-2026-4527?: Medium severity. CVSS v3 base score is 6.5 out of 10.