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.

A cross-site scripting issue has been discovered in GitLab CE/EE affecting all versions starting from 15.2 before 15.2.5, all versions starting from 15.3 before 15.3.4, all versions starting from 15.4 before 15.4.1 It was possible to exploit a vulnerability in the external status checks feature which could lead to a stored XSS that allowed attackers to perform arbitrary actions on behalf of victims at client side.

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 3 of 6). For installations using GitHub or Bitbucket OAuth integrations, it is possible to use a covert redirect to obtain the user OAuth token for those services.

GitLab Enterprise Edition (EE) 8.90 and later through 12.5 has Incorrect Access Control.

An issue has been discovered in GitLab affecting versions prior to 13.2.10, 13.3.7 and 13.4.2: Lack of Rate Limiting at Re-Sending Confirmation Email

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.10 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have allowed an authenticated user to cause a denial of service condition by uploading specially crafted images.

A vulnerability was discovered in GitLab starting with version 12.2 that allows an attacker to cause uncontrolled resource consumption with a specially crafted file.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2.2 before 18.5.5, 18.6 before 18.6.3, and 18.7 before 18.7.1 that could have allowed an authenticated user to achieve stored cross-site scripting by exploiting GitLab Flavored Markdown.

A lack of length validation in GitLab CE/EE affecting all versions from 8.3 before 15.10.8, 15.11 before 15.11.7, and 16.0 before 16.0.2 allows an authenticated attacker to create a large Issue description via GraphQL which, when repeatedly requested, saturates CPU usage.

In all versions of GitLab CE/EE since version 13.0, a privileged user, through an API call, can change the visibility level of a group or a project to a restricted option even after the instance administrator sets that visibility option as restricted in settings.

A potential DOS vulnerability was discovered in GitLab CE/EE affecting all versions before 15.1.6, all versions starting from 15.2 before 15.2.4, all versions starting from 15.3 before 15.3.2. Malformed content added to the issue description could have been used to trigger high CPU usage.

An issue has been discovered in GitLab CE/EE affecting all versions from 17.3 before 17.3.7, 17.4 before 17.4.4, and 17.5 before 17.5.2. Improper output encoding could lead to XSS if CSP is not enabled.

A security issue allowed achieving Denial of Service attacks through memory exhaustion by uploading malicious artifacts in all previous GitLab versions through 13.0.1

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.8 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4 that, under certain conditions, could have allowed an unauthenticated user to cause denial of service by sending repeated GraphQL queries.

GitLab has remediated an issue in GitLab EE affecting all versions from 18.5 before 18.5.5, 18.6 before 18.6.3, and 18.7 before 18.7.1 that could have allowed an authenticated user to modify instance-wide AI feature provider settings by exploiting missing authorization checks in GraphQL mutations.

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.

Improper access control in GitLab CE/EE affecting all versions starting from 10.7 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allows an attacker in possession of a deploy token to access a project's disabled wiki.

An issue was discovered in GitLab Community and Enterprise Edition before 11.1.7, 11.2.x before 11.2.4, and 11.3.x before 11.3.1. There is Cross Site Request Forgery (CSRF) in the Slack integration for issuing slash commands.

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 XSS.

An issue has been discovered in GitLab EE affecting all versions starting from 12.0 before 15.10.5, all versions starting from 15.11 before 15.11.1. A malicious group member may continue to commit to projects even from a restricted IP address.