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 10.6 where an infinite loop exist when an authenticated user with specific rights access a MR having source and target branch pointing to each other

An issue has been discovered in GitLab CE/EE affecting all versions starting from 13.4. It was possible to exploit a stored cross-site-scripting in merge request via a specifically crafted branch name.

In all versions of GitLab, marshalled session keys were being stored in Redis.

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.

An authorization issue in GitLab CE/EE version 9.4 and up allowed a group maintainer to modify group CI/CD variables which should be restricted to group owners

An Improper Input Validation issue was discovered in GitLab Community and Enterprise Edition before 11.5.8, 11.6.x before 11.6.6, and 11.7.x before 11.7.1. It was possible to use the profile name to inject a potentially malicious link into notification emails.