GitLab CE/EE Denial-of-Service Vulnerability in Token Listing Operations

A denial-of-service vulnerability has been identified in GitLab Community Edition (CE) and Enterprise Edition (EE) versions 10.7 prior to 18.1.6, 18.2 prior to 18.2.6, and 18.3 prior to 18.3.2. This vulnerability allowed authenticated users to disrupt access to token listings and related administrative functions by creating tokens with excessively large names.

Impact

Exploitation of this vulnerability could have led to a persistent denial-of-service condition, disrupting token management and related administrative operations for users on the affected GitLab instance.

Remediation

Users are advised to upgrade to GitLab versions 18.3.2, 18.2.6, or 18.1.6. Instructions for updating GitLab can be found in the GitLab Update documentation. For GitLab Runner, refer to the Updating the Runner page.