An issue has been discovered in GitLab CE/EE affecting all versions starting from 9.3 before 16.0.8, all versions starting from 16.1 before 16.1.3, all versions starting from 16.2 before 16.2.2. A Regular Expression Denial of Service was possible via sending crafted payloads which use ProjectReferenceFilter to the preview_markdown endpoint.

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

In all versions of GitLab CE/EE since version 11.10, an admin of a group can see the SCIM token of that group by visiting a specific endpoint.

An issue has been discovered in GitLab CE/EE affecting all previous versions. If the victim is an admin, it was possible to issue a CSRF in System hooks through the API.

An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.6 before 15.0.5, all versions starting from 15.1 before 15.1.4, all versions starting from 15.2 before 15.2.1. A malicious maintainer could exfiltrate an integration's access token by modifying the integration URL such that authenticated requests are sent to an attacker controlled server.

An issue has been discovered in GitLab affecting all versions starting from 8.15 before 16.2.8, all versions starting from 16.3 before 16.3.5, all versions starting from 16.4 before 16.4.1. It was possible to hijack some links and buttons on the GitLab UI to a malicious page.

A sensitive information leak issue has been discovered in GitLab EE affecting all versions starting from 16.0 before 16.0.6, all versions starting from 16.1 before 16.1.1, which allows access to titles of private issue and MR.

Multiple versions of GitLab expose a dangerous method to any authenticated user that could lead to the deletion of all Issue and MergeRequest objects on a GitLab instance. For GitLab instances with publicly available projects this vulnerability could be exploited by an unauthenticated user. A fix was included in versions 8.14.3, 8.13.8, and 8.12.11, which were released on December 5th 2016 at 3:59 PST. The GitLab versions vulnerable to this are 8.13.0, 8.13.0-ee, 8.13.1, 8.13.1-ee, 8.13.2, 8.13.2-ee, 8.13.3, 8.13.3-ee, 8.13.4, 8.13.4-ee, 8.13.5, 8.13.5-ee, 8.13.6, 8.13.6-ee, 8.13.7, 8.14.0, 8.14.0-ee, 8.14.1, 8.14.2, and 8.14.2-ee.

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. When 2 factor authentication was enabled for groups, a malicious user could bypass that restriction by sending a specific query to the API endpoint.

An information disclosure vulnerability in GitLab CE/EE affecting all versions starting from 9.3 before 15.2.5, all versions starting from 15.3 before 15.3.4, all versions starting from 15.4 before 15.4.1 allows a project maintainer to access the DataDog integration API key from webhook logs.

An issue has been discovered in GitLab EE affecting all versions starting from 14.3 before 17.4.6, all versions starting from 17.5 before 17.5.4 all versions starting from 17.6 before 17.6.2, that allows group users to view confidential incident title through the Wiki History Diff feature, potentially leading to information disclosure.

Improper authorization in GitLab Pages included with GitLab CE/EE affecting all versions from 11.5 prior to 14.7.7, 14.8 prior to 14.8.5, and 14.9 prior to 14.9.2 allowed an attacker to steal a user's access token on an attacker-controlled private GitLab Pages website and reuse that token on the victim's other private websites

Improper validation of invited users' email address in GitLab EE affecting all versions since 12.2 allowed projects to add members with email address domain that should be blocked by group settings

An issue was discovered in GitLab Community Edition (CE) and Enterprise Edition (EE) 11.4 through 12.6.1. It has Incorrect Access Control.

An improper access control issue in GitLab EE affecting all versions from 12.0 prior to 15.0.5, 15.1 prior to 15.1.4, and 15.2 prior to 15.2.1 allows an attacker to bypass IP allow-listing and download artifacts. This attack only bypasses IP allow-listing, proper permissions are still required.

For GitLab before 13.0.12, 13.1.6, 13.2.3 user controlled git configuration settings can be modified to result in Server Side Request Forgery.

An issue has been discovered in GitLab affecting all versions starting from 13.7 before 15.7.8, all versions starting from 15.8 before 15.8.4, all versions starting from 15.9 before 15.9.2. A specially crafted Kroki diagram could lead to a stored XSS on the client side which allows attackers to perform arbitrary actions on behalf of victims.

An issue has been discovered discovered in GitLab EE/CE affecting all versions starting from 11.4 before 17.2.9, all versions starting from 17.3 before 17.3.5, all versions starting from 17.4 before 17.4.2 It was possible for guest users to disclose project templates using the API.

An issue has been discovered in GitLab CE/EE affecting all versions starting from 15.1 prior to 15.11.10, all versions from 16.0 prior to 16.0.6, all versions from 16.1 prior to 16.1.1. A maintainer could modify a webhook URL to leak masked webhook secrets by manipulating other masked portions. This addresses an incomplete fix for CVE-2023-0838.

An issue has been discovered in GitLab CE/EE affecting all versions starting from 13.2 allowing unauthorized authenticated users to execute arbitrary code on the server.