An issue has been discovered in GitLab CE/EE affecting all versions starting with 12.6. Under a special condition it was possible to access data of an internal repository through a public project fork as an anonymous user.
An issue has been discovered in GitLab CE/EE affecting all versions starting from 13.9. A specially crafted import file could read files on the server.
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.