An issue was discovered in GitLab Enterprise Edition and Community Edition 1.10 through 12.0.2. The GitLab graphql service was vulnerable to multiple authorization issues that disclosed restricted user, group, and repository metadata to unauthorized users. It has Incorrect Access Control.

GitLab EE 8.0 through 12.7.2 has Insecure Permissions (issue 1 of 2).

A verbose error message in GitLab EE affecting all versions since 12.2 could disclose the private email address of a user invited to a group

An issue was discovered in GitLab EE affecting all versions starting with 12.3 before 17.7.7, 17.8 prior to 17.8.5, and 17.9 prior to 17.9.2. A vulnerability in certain GitLab instances could allow an attacker to cause a denial of service condition by manipulating specific API inputs.

For GitLab before 13.0.12, 13.1.6, 13.2.3 after a group transfer occurs, members from a parent group keep their access level on the subgroup leading to improper access.

Information disclosure via GraphQL in GitLab CE/EE 13.1 and later exposes private group and project membership. This affects versions >=13.6 to <13.6.2, >=13.5 to <13.5.5, and >=13.1 to <13.4.7.

An Incorrect Access Control issue was discovered in GitLab Community and Enterprise Edition 6.0 and later but before 11.3.11, 11.4.x before 11.4.8, and 11.5.x before 11.5.1. The issue comments feature could allow a user to comment on an issue which they shouldn't be allowed to.

An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.0 before 15.5.7, all versions starting from 15.6 before 15.6.4, all versions starting from 15.7 before 15.7.2. GitLab allows unauthenticated users to download user avatars using the victim's user ID, on private instances that restrict public level visibility.

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