GitLab 8.3 through 12.8.1 allows Information Disclosure. It was possible for certain non-members to access the Contribution Analytics page of a private group.

GitLab 7.10 through 12.8.1 has Incorrect Access Control. Under certain conditions where users should have been required to configure two-factor authentication, it was not being required.

GitLab 12.1 through 12.8.1 allows XSS. The merge request submission form was determined to have a stored cross-site scripting vulnerability.

GitLab 10.7 and later through 12.7.2 has Incorrect Access Control.

Unauthorized Access to the Container Registry of other groups was discovered in GitLab Enterprise 12.0.0-pre. In other words, authenticated remote attackers can read Docker registries of other groups. When a legitimate user changes the path of a group, Docker registries are not adapted, leaving them in the old namespace. They are not protected and are available to all other users with no previous access to the repo.

GitLab 12.2.2 and below contains a security vulnerability that allows a guest user in a private project to see the merge request ID associated to an issue via the activity timeline.

An issue was discovered in GitLab EE 11.3 and later. A GitLab Workhorse bypass could lead to package and file disclosure via request smuggling.

GitLab EE 8.8 and later through 12.7.2 has Insecure Permissions.

GitLab EE 10.1 through 12.7.2 allows Information Disclosure.

GitLab through 12.7.2 allows XSS.

GitLab EE 12.2 has Insecure Permissions (issue 2 of 2).

GitLab EE 11.0 and later through 12.7.2 allows XSS.

GitLab EE 8.0 and later through 12.7.2 allows Information Disclosure.

GitLab EE 8.0 through 12.7.2 has Incorrect Access Control.

GitLab EE 8.0 through 12.7.2 has Insecure Permissions (issue 1 of 2).

GitLab EE 11.11 and later through 12.7.2 allows Directory Traversal.

GitLab EE 8.9 and later through 12.7.2 has Insecure Permission

GitLab EE 8.9 and later through 12.7.2 has Insecure Permission

An access control issue exists in < 12.3.5, < 12.2.8, and < 12.1.14 for GitLab Community Edition (CE) and Enterprise Edition (EE) where private merge requests and issues would be disclosed with the Group Search feature provided by Elasticsearch integration

A XSS exists in Gitlab CE/EE < 12.1.10 in the Mermaid plugin.