What is CVE-2025-13978?

CVE-2025-13978 is a medium-severity vulnerability in Gitlab, classified under Generation of Error Message Containing Sensitive Information. CVSS score: 4.3/10. Published 2025-12-11.

How severe is CVE-2025-13978?

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

Information disclosure in Gitlab

CVE-2025-13978

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.5 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to discover the names of private projects they do not h…

EPSS: 0.003 (17.2th 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 17.5, 18.5, 18.6

Weakness classification (CWE)

CWE-209 — Generation of Error Message Containing Sensitive Information

References

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

Frequently asked questions

What is CVE-2025-13978?: CVE-2025-13978 is a medium-severity vulnerability in Gitlab, classified under Generation of Error Message Containing Sensitive Information. CVSS score: 4.3/10. Published 2025-12-11.
How severe is CVE-2025-13978?: Medium severity. CVSS v3 base score is 4.3 out of 10.