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. 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 before 11.5.8, 11.6.x before 11.6.6, and 11.7.x before 11.7.1. It has Incorrect Access Control (issue 3 of 3). When a project with visibility more permissive than the target group is imported, it will retain its prior visibility.

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 has Insufficient Visual Distinction of Homoglyphs Presented to a User. IDN homographs and RTLO characters are rendered to unicode, which could be used for social engineering.

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 5 of 6). A project guest user can view the last commit status of the default branch.

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 XSS (issue 1 of 2). Markdown fields contain a lack of input validation and output encoding when processing KaTeX that results in a persistent XSS.

All versions of GitLab prior to 11.5.1, 11.4.8, and 11.3.11 do not send an email to the old email address when an email address change is made.

An issue was discovered in GitLab Community and Enterprise Edition before 11.3.11, 11.4.x before 11.4.8, and 11.5.x before 11.5.1. There is an SSRF vulnerability in the Prometheus integration.

An issue was discovered in GitLab Community and Enterprise Edition before 11.6.10, 11.7.x before 11.7.6, and 11.8.x before 11.8.1. It has Insecure Permissions.

An issue was discovered in GitLab Community and Enterprise Edition before 11.6.10, 11.7.x before 11.7.6, and 11.8.x before 11.8.1. It has Incorrect Access Control (issue 3 of 5).

An issue was discovered in GitLab Community and Enterprise Edition before 11.6.10, 11.7.x before 11.7.6, and 11.8.x before 11.8.1. It has Incorrect Access Control (issue 1 of 5).

An issue was discovered in GitLab Community and Enterprise Edition before 11.7.8, 11.8.x before 11.8.4, and 11.9.x before 11.9.2. The construction of the HMAC key was insecurely derived.

An Open Redirect issue was discovered in GitLab Community and Enterprise Edition before 11.7.8, 11.8.x before 11.8.4, and 11.9.x before 11.9.2. A redirect is triggered after successful authentication within the Oauth/:GeoAuthController for the secondary Geo node.

An Insecure Permissions issue (issue 3 of 3) was discovered in GitLab Community and Enterprise Edition before 11.7.8, 11.8.x before 11.8.4, and 11.9.x before 11.9.2. Guests of a project were allowed to see Related Branches created for an issue.

An Insecure Permissions issue (issue 2 of 3) was discovered in GitLab Community and Enterprise Edition before 11.7.8, 11.8.x before 11.8.4, and 11.9.x before 11.9.2. The GitLab Releases feature could allow guest users access to private information like release details and code information.

An Information Exposure issue (issue 2 of 2) was discovered in GitLab Community and Enterprise Edition before 11.7.8, 11.8.x before 11.8.4, and 11.9.x before 11.9.2. During the OAuth authentication process, the application attempts to validate a parameter in an insecure way, potentially exposing data.

An issue was discovered in GitLab Community and Enterprise Edition before 11.7.8, 11.8.x before 11.8.4, and 11.9.x before 11.9.2. Making concurrent GET /api/v4/projects/<id>/languages requests may allow Uncontrolled Resource Consumption.

An issue was discovered in GitLab Community and Enterprise Edition before 11.7.8, 11.8.x before 11.8.4, and 11.9.x before 11.9.2. It allows persistent XSS in the merge request "resolve conflicts" page.

An Insecure Permissions issue (issue 1 of 3) was discovered in GitLab Community and Enterprise Edition before 11.7.8, 11.8.x before 11.8.4, and 11.9.x before 11.9.2. The "move issue" feature may allow a user to create projects under any namespace on any GitLab instance on which they hold credentials.

An Information Exposure issue (issue 1 of 2) was discovered in GitLab Community and Enterprise Edition before 11.7.8, 11.8.x before 11.8.4, and 11.9.x before 11.9.2. EXIF geolocation data were not removed from images when uploaded to GitLab. As a result, anyone with access to the uploaded image could obtain its geolocation, device, and software version data (if present).