What is CVE-2026-4868?

CVE-2026-4868 is a high-severity vulnerability in Gitlab, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.2/10. Published 2026-05-27.

How severe is CVE-2026-4868?

High severity. CVSS v3 base score is 8.2 out of 10.

Auth bypass in Gitlab

CVE-2026-4868

GitLab has remediated an issue in GitLab EE affecting all versions from 18.8 before 18.10.7, 18.11 before 18.11.4, and 19.0 before 19.0.1 that, under certain conditions, could have allowed an authenticated user to cause specific Duo AI wor…

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.000 (1.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N.

Affected products

Gitlab — versions 19.0.0, 18.8, 18.11

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

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-2026-4868?: CVE-2026-4868 is a high-severity vulnerability in Gitlab, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.2/10. Published 2026-05-27.
How severe is CVE-2026-4868?: High severity. CVSS v3 base score is 8.2 out of 10.