Vulnerability · Published Mar 25, 2026 · Assigned by GitLab
CVE-2025-13078Improper Validation of Specified Quantity in Input in GitLab
Medium 6.5
In plain English
A medium-severity security flaw in GitLab from GitLab. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.4%top 63.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.10 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an authenticated user to cause a denial of service due to excessive resource consumption when processing certain webhook configuration inputs.
Affected products (as reported)
Weakness: CWE-1284 · 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 #3413704 technical-description, exploit, permissions-required
- https://gitlab.com/gitlab-org/gitlab/-/work_items/580488
- https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/