CVE-2021-39917

CVE-2021-39917 affects GitLab CE/EE: a regular expression used by quick actions is vulnerable to catastrophic backtracking, enabling a DOS. Impacted: GitLab versions 12.9–14.3.5, 14.4.0–14.4.3, and 14.5.0–14.5.1. Remediation: upgrade to fixed releases (14.3.6, 14.4.4, or 14.5.2 or newer as applic...