GitLab EE, versions 11.x before 11.3.11, 11.4 before 11.4.8, and 11.5 before 11.5.1, is vulnerable to an insecure direct object reference vulnerability that allows authenticated, but unauthorized, users to view members and milestone details of private groups.

An issue was discovered in GitLab Community and Enterprise Edition 11.1.x before 11.1.8, 11.2.x before 11.2.5, and 11.3.x before 11.3.2. There is Information Exposure via the merge request JSON endpoint.

An issue was discovered in GitLab Community and Enterprise Edition before 11.2.7, 11.3.x before 11.3.8, and 11.4.x before 11.4.3. It has Information Exposure Through an Error Message.

An issue was discovered in GitLab Community and Enterprise Edition before 11.2.7, 11.3.x before 11.3.8, and 11.4.x before 11.4.3. It has Cleartext Storage of Sensitive Information.

An issue was discovered in GitLab Community Edition 11.x before 11.1.8, 11.2.x before 11.2.5, and 11.3.x before 11.3.2. There is Information Exposure via the GFM markdown API.

An issue was discovered in GitLab Community and Enterprise Edition before 11.0.6, 11.1.x before 11.1.5, and 11.2.x before 11.2.2. There is Sensitive Data Disclosure in Sidekiq Logs through an Error Message.

Due to an insecure direct object reference vulnerability in Gitlab EE/CE affecting all versions from 11.0 prior to 14.8.6, 14.9 prior to 14.9.4, and 14.10 prior to 14.10.1, an endpoint may reveal the issue title to a user who crafted an API call with the ID of the issue from a public project that restricts access to issue only to project members.

An issue was discovered in GitLab Community and Enterprise Edition before 10.8.7, 11.0.x before 11.0.5, and 11.1.x before 11.1.2. Information Disclosure can occur because the Prometheus metrics feature discloses private project pathnames.

An issue has been discovered in GitLab CE/EE affecting all versions starting from 13.4 before 14.10.5, all versions starting from 15.0 before 15.0.4, all versions starting from 15.1 before 15.1.1. GitLab reveals if a user has enabled two-factor authentication on their account in the HTML source, to unauthenticated users.

In all versions of GitLab CE/EE since version 10.6, a project export leaks the external webhook token value which may allow access to the project which it was exported from.

Improper access control in GitLab CE/EE version 10.5 and above allowed subgroup members with inherited access to a project from a parent group to still have access even after the subgroup is transferred

An information disclosure vulnerability in GitLab CE/EE versions 12.0 to 14.3.6, 14.4 to 14.4.4, and 14.5 to 14.5.2 allowed non-project members to see the default branch name for projects that restrict access to the repository to project members

In all versions of GitLab CE/EE since version 13.6, it is possible to see pending invitations of any public group or public project by visiting an API endpoint.

An information disclosure issue was discovered in GitLab Enterprise Edition before 11.5.8, 11.6.x before 11.6.6, and 11.7.x before 11.7.1. The GitHub token used in CI/CD for External Repos was being leaked to project maintainers in the UI.

An 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 allows Information Disclosure (issue 1 of 6). An authorization issue allows the contributed project information of a private profile to be viewed.

An 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 allows Path Disclosure. When an error is encountered on project import, the error message will display instance internal information.