CVE-2025-13690 — MEDIUM (6.5)

Q: How severe is CVE-2025-13690?

CVE-2025-13690 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2025-13690?

Check the references section above for vendor advisories and patch information. Affected products include: Gitlab Gitlab.

Vulnerability Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.11 before 18.7.6, 18.8 before 18.8.6, and 18.9 before 18.9.2 that could have allowed an authenticated user to cause a denial of service condition due to improper input validation on webhook custom header names under certain conditions.

CVSS Score

6.5

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Gitlab	Gitlab	>= 16.11.0, < 18.7.6

Related Weaknesses (CWE)

CWE-770

References

https://about.gitlab.com/releases/2026/03/11/patch-release-gitlab-18-9-2-releaseRelease NotesVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/work_items/582096Broken Link
https://hackerone.com/reports/3415683Permissions Required

FAQ

What is CVE-2025-13690?

CVE-2025-13690 is a vulnerability with a CVSS score of 6.5 (MEDIUM). GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.11 before 18.7.6, 18.8 before 18.8.6, and 18.9 before 18.9.2 that could have allowed an authenticated user to cause a deni...

How severe is CVE-2025-13690?

CVE-2025-13690 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-13690?

Check the references section above for vendor advisories and patch information. Affected products include: Gitlab Gitlab.