CVE-2026-3988 HIGH

CVE-2026-3988: Inefficient Algorithmic Complexity in GitLab

Vendor Gitlab
Product GitLab
Weakness CWE-407
Published March 25, 2026
Last update March 25, 2026
View on NVD All CVEs

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 25, 2026 CVE published
March 25, 2026 Record updated