In all versions of GitLab CE/EE, provided a user ID, anonymous users can use a few endpoints to retrieve information about any GitLab user.

An information disclosure vulnerability in GitLab CE/EE versions 12.0 to 14.3.6, 14.4 to 14.4.4, and 14.5 to 14.5.2 allowed non-project members to see the default branch name for projects that restrict access to the repository to project members

Improper access control in the GraphQL API in GitLab CE/EE affecting all versions starting from 13.0 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 to see the names of project access tokens on arbitrary projects

An improper authorization issue in GitLab CE/EE affecting all versions from 13.7 prior to 14.10.5, 15.0 prior to 15.0.4, and 15.1 prior to 15.1.1 allows an attacker to extract the value of an unprotected variable they know the name of in public projects or private projects they're a member of.

An issue was discovered in GitLab Community Edition (CE) and Enterprise Edition (EE) 12.6. It has Incorrect Access Control.

Gitlab Enterprise Edition version 10.3 is vulnerable to an authorization bypass issue in the GitLab Projects::BoardsController component resulting in an information disclosure on any board object.

GitLab EE/CE 8.11 to 12.9 is leaking information on Issues opened in a public project and then moved to a private project through Web-UI and GraphQL API.

GitLab EE/CE 8.17 to 12.9 is vulnerable to information leakage when querying a merge request widget.

GitLab 11.7 through 12.8.1 allows Information Disclosure. Under certain group conditions, group epic information was unintentionally being disclosed.

An issue was discovered in GitLab 10.7.0 and later through 12.9.2. A Workhorse bypass could lead to job artifact uploads and file disclosure (Exposure of Sensitive Information) via request smuggling.

GitLab 12.3.5 through 12.8.1 allows Information Disclosure. A particular view was exposing merge private merge request titles.

GitLab 8.3 through 12.8.1 allows Information Disclosure. It was possible for certain non-members to access the Contribution Analytics page of a private group.

In GitLab EE 11.7 through 12.9, the NPM feature is vulnerable to a path traversal issue.

An issue was discovered in GitLab Community Edition (CE) and Enterprise Edition (EE) before 12.7.9, 12.8.x before 12.8.9, and 12.9.x before 12.9.3. A Workhorse bypass could lead to NuGet package and file disclosure (Exposure of Sensitive Information) via request smuggling.

An issue was discovered in GitLab Community and Enterprise Edition 8.15 through 12.4 in the Comments Search feature provided by the Elasticsearch integration. It has Incorrect Access Control.

An issue was discovered in GitLab Community and Enterprise Edition 11.3 through 12.4 when moving an issue to a public project from a private one. It has Insecure Permissions.

GitLab EE 11.6 through 12.8.1 allows Information Disclosure. Sending a specially crafted request to the vulnerability_feedback endpoint could result in the exposure of a private project namespace

GitLab 10.4 through 12.8.1 allows Directory Traversal. A particular endpoint was vulnerable to a directory traversal vulnerability, leading to arbitrary file read.

An issue was discovered in GitLab Community and Enterprise Edition before 11.4.13, 11.5.x before 11.5.6, and 11.6.x before 11.6.1. It has Incorrect Access Control.

GitLab before 12.8.2 allows Information Disclosure. Badge images were not being proxied, causing mixed content warnings as well as leaking the IP address of the user.

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.

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 allows Information Exposure (issue 4 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 5 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 4 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 allows Information Exposure (issue 3 of 5).

An information disclosure issue was discovered GitLab versions < 12.1.2, < 12.0.4, and < 11.11.6 in the security dashboard which could result in disclosure of vulnerability feedback information.

An improper access control vulnerability exists in Gitlab EE <v12.3.3, <v12.2.7, & <v12.1.13 that allowed the group search feature with Elasticsearch to return private code, merge requests and commits.

An issue was discovered in GitLab Community and Enterprise Edition 7.9 through 12.2.1. EXIF Geolocation data was not being removed from certain image uploads.

An issue was discovered in GitLab Community Edition (CE) and Enterprise Edition (EE) 9.1 through 12.6.1. It has Incorrect Access Control.

An information disclosure exists in < 12.3.2, < 12.2.6, and < 12.1.12 for GitLab Community Edition (CE) and Enterprise Edition (EE) where the assignee(s) of a confidential issue in a private project would be disclosed to a guest via milestones.

GitLab EE 8.4 through 12.5, 12.4.3, and 12.3.6 stored several tokens in plaintext.

In GitLab EE 10.5 through 12.5.3, 12.4.5, and 12.3.8, when transferring a public project to a private group, private code would be disclosed via the Group Search API provided by the Elasticsearch integration.

GitLab Community Edition (CE) and Enterprise Edition (EE) through 12.5 has Incorrect Access Control (issue 1 of 2).

GitLab Enterprise Edition (EE) 12.2 and later through 12.5 has Incorrect Access Control.

An issue was discovered in GitLab Community and Enterprise Edition before 11.4. It allows Directory Traversal.

An issue was discovered in GitLab Community and Enterprise Edition 8.17 through 12.4 in the Search feature provided by Elasticsearch integration.. It has Insecure Permissions (issue 1 of 4).

An issue was discovered in GitLab Community and Enterprise Edition 11.3 to 12.3 in the protected environments feature. It has Insecure Permissions (issue 3 of 4).

An authorization issue was discovered in the GitLab CE/EE CI badge images endpoint which could result in disclosure of the build status. This vulnerability was addressed in 12.1.2, 12.0.4, and 11.11.6.

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.

An issue was discovered in GitLab Community and Enterprise Edition 11.2 through 12.2.1. Insufficient permission checks were being applied when displaying CI results, potentially exposing some CI metrics data to unauthorized users.

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 information disclosure vulnerability exists in GitLab CE/EE <v12.3.2, <v12.2.6, and <v12.1.12 that allowed an attacker to view private system notes from a GraphQL endpoint.

An information disclosure exists in < 12.3.2, < 12.2.6, and < 12.1.12 for GitLab Community Edition (CE) and Enterprise Edition (EE). When an issue was moved to a public project from a private one, the associated private labels and the private project namespace would be disclosed through the GitLab API.

An issue was discovered in GitLab Community and Enterprise Edition 12.0 through 12.2.1. An IDOR in the epic notes API that could result in disclosure of private milestones, labels, and other information.

An access control issue exists in < 12.3.5, < 12.2.8, and < 12.1.14 for GitLab Community Edition (CE) and Enterprise Edition (EE) where private merge requests and issues would be disclosed with the Group Search feature provided by Elasticsearch integration

An issue was discovered in GitLab Community and Enterprise Edition 12.0 through 12.2.1. Under certain conditions, merge request IDs were being disclosed via email.

An IDOR exists in < 12.3.2, < 12.2.6, and < 12.1.12 for GitLab Community Edition (CE) and Enterprise Edition (EE) that allowed a project owner or maintainer to see the members of any private group via merge request approval rules.

An issue was discovered in GitLab Community and Enterprise Edition 12.2 through 12.2.1. The project import API could be used to bypass project visibility restrictions.

GitLab Enterprise Edition (EE) 10.8 and later through 12.5 has Incorrect Access Control.

GitLab EE 12.4 and later through 12.7.2 has Incorrect Access Control.