Vulnerability · Published Mar 11, 2026 · Assigned by GitLab
CVE-2025-13690Allocation of Resources Without Limits or Throttling in GitLab
Medium 6.5
In plain English
A medium-severity resource allocation without limits in GitLab from GitLab. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.4%top 61.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
- HackerOne Bug Bounty Report #3415683 technical-description, exploit, permissions-required
- https://gitlab.com/gitlab-org/gitlab/-/work_items/582096
- https://about.gitlab.com/releases/2026/03/11/patch-release-gitlab-18-9-2-released/