How serious is CVE-2025-13690?

This vulnerability has a CVSS score of 6.5 out of 10, classified as MEDIUM severity. Proof-of-concept exploit code is publicly available, making this an active threat.

Is there exploit code available for CVE-2025-13690?

Yes, proof-of-concept exploit code for CVE-2025-13690 is publicly available on GitHub and security research platforms. This increases the risk of active exploitation.

Which products are affected by CVE-2025-13690?

CVE-2025-13690 affects gitlab gitlab. Check the full CVE details for specific version information.

How do I fix CVE-2025-13690?

To remediate CVE-2025-13690, check for security patches from gitlab. Apply all available updates and security patches. If no patch is available, implement recommended workarounds or security controls to mitigate the risk.

CVE-2025-13690

Medium

|6.5

Exploit Available

Plain English Summary

AI-powered analysis for quick understanding

This vulnerability allows an authenticated user to crash the GitLab server, leading to a denial of service, by sending specially crafted webhook header names. It affects specific versions of GitLab and requires the attacker to have access to an account on the system.

Technical 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 Vector Analysis

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

Confidentiality ImpactNone

Integrity ImpactNone

Availability ImpactHigh

ScopeUnchanged

Vector String

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

Exploit Resources

Search for proof-of-concept code and exploit modules

GitHub Search Exploit-DB Nuclei Templates Metasploit Vulners

Official References

NIST NVD

Est. Bounty

$931($500-$1K)

Vendor Response

Grade APatched in 1 day

Quick Information

Published

Mar 11, 2026

27 days ago

Last Modified

Mar 13, 2026

25 days ago

Vendor

gitlab

Product

gitlab

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