An issue has been discovered in GitLab EE affecting all versions starting from 16.5 before 16.7.6, all versions starting from 16.8 before 16.8.3, all versions starting from 16.9 before 16.9.1. When a user is assigned a custom role with admin_group_member permission, they may be able to make a group, other members or themselves Owners of that group, which may lead to privilege escalation.

An issue has been discovered in GitLab CE/EE affecting all versions from 17.7 before 18.0.6, 18.1 before 18.1.4, and 18.2 before 18.2.2 that under certain conditions could have allowed authenticated users with specific roles and permissions to delete issues including confidential ones by inviting users with a specific role.