CVE-2025-13690

MEDIUM EPSS 30.3%
Published Mar 11, 20263mo ago · Modified Jun 17, 20261w ago
6.5 CVSS 3.1
Medium
Find Similar
Published Mar 11, 2026 3mo ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
6.5
Exploitability
2.8
Impact
3.6
Vector string
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

Threat Intelligence

EPSS Exploit Probability
30.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-770

Affected Products 6

VendorProductVersionRange
gitlabgitlab*≥16.11.0  –  <18.7.6
gitlabgitlab*≥16.11.0  –  <18.7.6
gitlabgitlab*≥18.8.0  –  <18.8.6
gitlabgitlab*≥18.8.0  –  <18.8.6
gitlabgitlab*≥18.9.0  –  <18.9.2
gitlabgitlab*≥18.9.0  –  <18.9.2

References 3

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.