An issue has been discovered in GitLab CE/EE affecting all versions starting from 13.2 allowing unauthorized authenticated users to execute arbitrary code on the server.
https://hackerone.com/reports/1125425
https://gitlab.com/gitlab-org/gitlab/-/issues/324452
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22192.json