GitLab 12.2.3 contains a security vulnerability that allows a user to affect the availability of the service through a Denial of Service attack in Issue Comments.
An issue was discovered in GitLab Community and Enterprise Edition 8.18 through 12.2.1. An internal endpoint unintentionally disclosed information about the last pipeline that ran for a merge request.
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 through 12.2.1. Under certain circumstances, CI pipelines could potentially be used in a denial of service attack.
An issue was discovered in GitLab Community and Enterprise Edition through 12.2.1. Certain account actions needed improved authentication and session management.
An issue was discovered in GitLab Community and Enterprise Edition 12.0 through 12.2.1. Under certain conditions, merge request IDs were being disclosed via email.
An issue was discovered in GitLab Community and Enterprise Edition 8.1 through 12.2.1. Certain areas displaying Markdown were not properly sanitizing some XSS payloads.
An issue was discovered in GitLab Community and Enterprise Edition 7.9 through 12.2.1. EXIF Geolocation data was not being removed from certain image uploads.
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.