CVE 2021-39913

Accidental logging of system root password in the migration log in all versions of GitLab CE/EE before 14.2.6, all versions starting from 14.3 before 14.3.4, and all versions starting from 14.4 before 14.4.1 allows an attacker with local file system access to obtain system root-level privileges

See the CVE page on Mitre.org for more details.