An issue was discovered in GitLab EE 11.3 and later. A GitLab Workhorse bypass could lead to package and file disclosure via request smuggling.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.7 before 18.3.6, 18.4 before 18.4.4, and 18.5 before 18.5.2, that could have allowed a blocked user to access sensitive information by establishing GraphQL subscriptions through WebSocket connections.

It was possible for a guest user to read a todo targeting an inaccessible note in Gitlab CE/EE affecting all versions from 15.0 prior to 15.2.5, 15.3 prior to 15.3.4, and 15.4 prior to 15.4.1.

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 Missing Authorization Control for API Repository Storage.

An authorization bypass vulnerability was discovered in GitLab affecting versions 11.3 prior to 16.7.7, 16.7.6 prior to 16.8.4, and 16.8.3 prior to 16.9.2. An attacker could bypass CODEOWNERS by utilizing a crafted payload in an old feature branch to perform malicious actions.

An issue was discovered in GitLab Enterprise Edition before 11.7.11, 11.8.x before 11.8.7, and 11.9.x before 11.9.7. It allows Information Disclosure.

A vulnerability was discovered in GitLab versions prior 13.1. The comment section of the issue page was not restricting the characters properly, potentially resulting in a denial of service.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 8.3 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 create a denial of service condition by providing crafted responses to external API calls.

A Cross Window Forgery vulnerability exists within GitLab CE/EE affecting all versions from 16.3 prior to 16.11.5, 17.0 prior to 17.0.3, and 17.1 prior to 17.1.1. This condition allows for an attacker to abuse the OAuth authentication flow via a crafted payload.

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. An unauthorized project maintainer could edit the subgroup badges due to the lack of authorization control.

An issue was discovered in GitLab CE/EE affecting all versions starting from 13.6 prior to 17.2.9, starting from 17.3 prior to 17.3.5, and starting from 17.4 prior to 17.4.2, where viewing diffs of MR with conflicts can be slow.

A DNS rebinding vulnerability in the Irker IRC Gateway integration in all versions of GitLab CE/EE since version 7.9 allows an attacker to trigger Server Side Request Forgery (SSRF) attacks.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.7 before 18.6.4, 18.7 before 18.7.2, and 18.8 before 18.8.2 that could have allowed an unauthenticated user to cause a denial of service condition by exploiting incorrect authorization validation in API endpoints.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.7 before 18.3.5, 18.4 before 18.4.3, and 18.5 before 18.5.1 that could have allowed an unauthenticated attacker to create a denial of service condition by uploading large files to specific API endpoints.

An issue was discovered in GitLab Community and Enterprise Edition 8.x, 9.x, 10.x, and 11.x before 11.8.9, 11.9.x before 11.9.10, and 11.10.x before 11.10.2. It allows Information Disclosure. Non-member users who subscribe to notifications of an internal project with issue and repository restrictions will receive emails about restricted events.

In all versions of GitLab CE/EE since version 12.0, a lower privileged user can import users from projects that they don't have a maintainer role on and disclose email addresses of those users.

A denial of service vulnerability in all versions of GitLab CE/EE before 13.12.2, 13.11.5 or 13.10.5 allows an attacker to cause uncontrolled resource consumption with a specially crafted issue or merge request

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.1 before 18.6.4, 18.7 before 18.7.2, and 18.8 before 18.8.2 that under certain circumstances could have allowed an authenticated user to create a denial of service condition by configuring malformed Wiki documents that bypass cycle detection.

GitLab Community and Enterprise Editions before 10.1.6, 10.2.6, and 10.3.4 are vulnerable to an unverified password change issue in the PasswordsController component resulting in potential account takeover if a victim's session is compromised.

An issue has been discovered affecting GitLab versions prior to 14.4.5, between 14.5.0 and 14.5.3, and between 14.6.0 and 14.6.1. GitLab is configured in a way that it doesn't ignore replacement references with git sub-commands, allowing a malicious user to spoof the contents of their commits in the UI.