CVE-2026-3988
Inefficient Algorithmic Complexity in GitLab
- State
- Published
- Severity
- 7.5 High
- Published
- Mar 25, 2026
- Updated
- Mar 25, 2026
- Reserved
- Mar 11, 2026
Description
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.5 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an unauthenticated user to cause a denial of service by making the GitLab instance unresponsive due to improper input validation in GraphQL request processing.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | GitLab |
Weaknesses
- CWE-407 Inefficient Algorithmic Complexity
Affected Products
| Product | Versions |
|---|---|
GitLabGitLab |
|
References
- https://gitlab.com/gitlab-org/gitlab/-/work_items/593140
- HackerOne Bug Bounty Report #3597342technical-descriptionexploitpermissions-required
- https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.