CVE-2025-13978

Description

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 have access through API requests.

CVSS v3.1 Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Weakness Type (CWE)

CWE-209 CWE-209

Affected Products

Vendor	Product	Versions
gitlab	gitlab	17.5.0 — 18.4.6
gitlab	gitlab	17.5.0 — 18.4.6
gitlab	gitlab	18.5.0 — 18.5.4
gitlab	gitlab	18.5.0 — 18.5.4
gitlab	gitlab	18.6.0 — 18.6.2
gitlab	gitlab	18.6.0 — 18.6.2

References

Advisories & Patches

https://about.gitlab.com/releases/2025/12/10/patch-release-gitlab-18-6-2-released/

Other References

https://gitlab.com/gitlab-org/gitlab/-/issues/566960 https://gitlab.com/gitlab-org/gitlab/-/work_items/566960

Frequently Asked Questions

What is 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 have access through API requests. It has a CVSS v3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2025-13978? +

CVE-2025-13978 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-13978? +

CVE-2025-13978 affects products from gitlab, specifically: gitlab. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-13978? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-3259

A Generation of Error Message Containing Sensitive Information vulnerability in the Materialized View Refresh mechanism in Google BigQuery on Google …

CVE-2026-42459

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, the free5GC UDM component fails to validate …

CVE-2025-40653

User enumeration vulnerability in M3M Printer Server Web. This issue occurs during user authentication, where a difference in error messages …

CVE-2023-40457

The BGP daemon in Extreme Networks ExtremeXOS (aka EXOS) 30.7.1.1 allows an attacker (who is not on a directly connected …

CVE-2025-9977

Value provided in one of POST parameters sent during the process of logging in to Times Software E-Payroll is not …

CVE-2025-13596

A sensitive information disclosure vulnerability exists in the error handling component of ATISoluciones CIGES Application version 2.15.6 and earlier. When …