An issue was discovered in GitLab Community and Enterprise Edition 8.6 through 12.2.1. Under very specific conditions, commit titles and team member comments could become viewable to users who did not have permission to access these.

An issue was discovered in GitLab Community and Enterprise Edition 7.12 through 12.2.1. The specified default branch name could be exposed to unauthorized users.

An issue was discovered in GitLab Community and Enterprise Edition 12.0 through 12.2.1. Non-members were able to comment on merge requests despite the repository being set to allow only project members to do so.

An issue was discovered in GitLab Community and Enterprise Edition 8.14 through 12.2.1. The Jira integration contains a SSRF vulnerability as a result of a bypass of the current protection mechanisms against this type of attack, which would allow sending requests to any resources accessible in the local network by the GitLab server.

An issue was discovered in GitLab Community and Enterprise Edition 10.1 through 12.2.1. Protections against SSRF attacks on the Kubernetes integration are insufficient, which could have allowed an attacker to request any local network resource accessible from the GitLab server.

An issue was discovered in GitLab Community and Enterprise Edition 11.2 through 12.2.1. Insufficient permission checks were being applied when displaying CI results, potentially exposing some CI metrics data to unauthorized users.

An issue was discovered in GitLab Community and Enterprise Edition through 12.2.1. Embedded images and media files in markdown could be pointed to an arbitrary server, which would reveal the IP address of clients requesting the file from that server.

An issue was discovered in GitLab Community and Enterprise Edition 12.0 through 12.2.1. An IDOR in the epic notes API that could result in disclosure of private milestones, labels, and other information.

An issue was discovered in GitLab Community and Enterprise Edition 11.10 through 12.2.1. Label descriptions are vulnerable to HTML injection.

An issue was discovered in GitLab Community and Enterprise Edition 8.15 through 12.2.1. Particular mathematical expressions in GitLab Markdown can exhaust client resources.

An issue was discovered in GitLab Community and Enterprise Edition 10.8 through 12.2.1. An internal endpoint unintentionally allowed group maintainers to view and edit group runner settings.

An issue was discovered in GitLab Enterprise Edition 11.x and 12.x before 12.0.9, 12.1.x before 12.1.9, and 12.2.x before 12.2.5. It has Incorrect Access Control.

An input validation and output encoding issue was discovered in the GitLab email notification feature which could result in a persistent XSS. This was addressed in GitLab 12.1.2, 12.0.4, and 11.11.6.

An input validation and output encoding issue was discovered in the GitLab CE/EE wiki pages feature which could result in a persistent XSS. This vulnerability was addressed in 12.1.2, 12.0.4, and 11.11.6.

An authorization issue was discovered in the GitLab CE/EE CI badge images endpoint which could result in disclosure of the build status. This vulnerability was addressed in 12.1.2, 12.0.4, and 11.11.6.

An input validation problem was discovered in the GitHub service integration which could result in an attacker being able to make arbitrary POST requests in a GitLab instance's internal network. This vulnerability was addressed in 12.1.2, 12.0.4, and 11.11.6.

An issue was discovered in GitLab Community and Enterprise Edition 12.0 through 12.1.4. It uses Hard-coded Credentials.