What is CVE-2026-3074?

CVE-2026-3074 is a medium-severity vulnerability in Gitlab, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-05-14.

How severe is CVE-2026-3074?

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

Auth bypass in Gitlab

CVE-2026-3074

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.7 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 download private debugging symbols from inacce…

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.000 (5.9th percentile) — read the EPSS interpretation.

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 16.7, 18.10, 18.11

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

cve@gitlab.com (Permissions Required, technical-description, permissions-required, exploit)
cve@gitlab.com (Not Applicable)
cve@gitlab.com (Release Notes)

Frequently asked questions

What is CVE-2026-3074?: CVE-2026-3074 is a medium-severity vulnerability in Gitlab, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-05-14.
How severe is CVE-2026-3074?: Medium severity. CVSS v3 base score is 4.3 out of 10.