GitLab versions 8.9.x and above contain a critical security flaw in the "import/export project" feature of GitLab. Added in GitLab 8.9, this feature allows a user to export and then re-import their projects as tape archive files (tar). All GitLab versions prior to 8.13.0 restricted this feature to administrators only. Starting with version 8.13.0 this feature was made available to all users. This feature did not properly check for symbolic links in user-provided archives and therefore it was possible for an authenticated user to retrieve the contents of any file accessible to the GitLab service account. This included sensitive files such as those that contain secret tokens used by the GitLab service to authenticate users. GitLab CE and EE versions 8.13.0 through 8.13.2, 8.12.0 through 8.12.7, 8.11.0 through 8.11.10, 8.10.0 through 8.10.12, and 8.9.0 through 8.9.11 are affected.

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Due to improper verification of permissions, an unauthorized user can access a private repository within a public project.

An authorization issue in the mirroring logic allowed read access to private repositories in GitLab CE/EE 10.6 and later through 13.0.5

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. Project reporters and above could see confidential EPIC attached to confidential issues

GitLab Enterprise Edition (EE) before 8.17.7, 9.0.11, 9.1.8, 9.2.8, and 9.3.8 allows an authenticated user with the ability to create a project to use the mirroring feature to potentially read repositories belonging to other users.

An issue was discovered in GitLab CE and EE 8.15 through 12.9.2. Members of a group could still have access after the group is deleted.

GitLab Community and Enterprise Editions before 10.1.6, 10.2.6, and 10.3.4 are vulnerable to an authorization bypass issue in the Projects::MergeRequests::CreationsController component resulting in an attacker to see every project name and their respective namespace on a GitLab instance.

Gitlab Enterprise Edition version 10.1.0 is vulnerable to an insufficiently protected credential issue in the project service integration API endpoint resulting in an information disclosure of plaintext password.

Removed group members were able to use the To-Do functionality to retrieve updated information on confidential epics starting in GitLab EE 13.2 before 13.6.2.

GitLab EE, versions 11.4 before 11.4.8 and 11.5 before 11.5.1, is affected by an insecure direct object reference vulnerability that permits an unauthorized user to publish the draft merge request comments of another user.

GitLab before 12.8.2 has Incorrect Access Control. It was internally discovered that the LFS import process could potentially be used to incorrectly access LFS objects not owned by the user.

Information exposure in GitLab EE affecting all versions from 12.0 prior to 14.10.5, 15.0 prior to 15.0.4, and 15.1 prior to 15.1.1 allows an attacker with the appropriate access tokens to obtain CI variables in a group with using IP-based access restrictions even if the GitLab Runner is calling from outside the allowed IP range

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

GitLab EE/CE 11.1 through 12.9 is vulnerable to parameter tampering on an upload feature that allows an unauthorized user to read content available under specific folders.

GitLab EE/CE 10.8 to 12.9 is leaking metadata and comments on vulnerabilities to unauthorized users on the vulnerability feedback page.

An issue was discovered in GitLab Community and Enterprise Edition 11.x before 11.7.7 and 11.8.x before 11.8.3. It allows Information Disclosure.

An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.2 before 14.7.7, all versions starting from 14.8 before 14.8.5, all versions starting from 14.9 before 14.9.2 that allowed for an unauthorised user to read the the approval rules of a private project.

An Incorrect Access Control (issue 2 of 3) issue was discovered in GitLab Community and Enterprise Edition 8.14 and later but before 11.5.8, 11.6.x before 11.6.6, and 11.7.x before 11.7.1. Guest users were able to view the list of a group's merge requests.

An Incorrect Access Control 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. The GitLab API allowed project Maintainers and Owners to view the trigger tokens of other project users.

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 has Incorrect Access Control (issue 1 of 3). The contents of an LFS object can be accessed by an unauthorized user, if the file size and OID are known.

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 has Incorrect Access Control (issue 3 of 3). When a project with visibility more permissive than the target group is imported, it will retain its prior visibility.

An information disclosure issue was discovered in GitLab CE/EE 8.14 and later, by using the move issue feature which could result in disclosure of the newly created issue ID.

An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.8 before 14.9.5, all versions starting from 14.10 before 14.10.4, all versions starting from 15.0 before 15.0.1. It may be possible for a subgroup member to access the members list of their parent group.

GitLab Enterprise Edition (EE) 9.0 and later through 12.5 allows Information Disclosure.

GitLab Enterprise Edition (EE) 11.9 and later through 12.5 has Insecure Permissions.

GitLab Enterprise Edition (EE) 12.3 and later through 12.5 has Incorrect Access Control.

It was possible to disclose details of confidential notes created via the API in Gitlab CE/EE affecting all versions from 13.2 prior to 14.8.6, 14.9 prior to 14.9.4, and 14.10 prior to 14.10.1 if an unauthorised project member was tagged in the note.

Gitlab Enterprise Edition (EE) before 12.5.1 has Insecure Permissions (issue 1 of 2).

Gitlab Enterprise Edition (EE) before 12.5.1 has Insecure Permissions (issue 2 of 2).

Improper input validation in GitLab CE/EE affecting all versions from 8.12 prior to 14.8.6, all versions from 14.9.0 prior to 14.9.4, and 14.10.0 allows a Developer to read protected Group or Project CI/CD variables by importing a malicious project

An issue was discovered in GitLab Community and Enterprise Edition through 12.4. It has Insecure Permissions (issue 4 of 4).

Incorrect authorization in GitLab EE affecting all versions from 10.7 prior to 14.10.5, 15.0 prior to 15.0.4, and 15.1 prior to 15.1.1, allowed an attacker already in possession of a valid Deploy Key or a Deploy Token to misuse it from any location to access Container Registries even when IP address restrictions were configured.

An issue was discovered in GitLab Community and Enterprise Edition before 12.4. It has Insecure Permissions.

An issue was discovered in GitLab Community and Enterprise Edition before 12.4 in the Project labels feature. It has Insecure Permissions.

An issue was discovered in GitLab Community and Enterprise Edition before 12.4. It has Incorrect Access Control.

An issue was discovered in GitLab Community and Enterprise Edition 11.3 through 12.3 when a sub group epic is added to a public group. It has Incorrect Access Control.

An improper access control vulnerability in GitLab CE/EE affecting all versions from 13.11 prior to 14.7.7, 14.8 prior to 14.8.5, and 14.9 prior to 14.9.2 allows an unauthorized user to access pipeline analytics even when public pipelines are disabled

An issue was discovered in GitLab Community and Enterprise Edition 11.3 through 12.4. It has Insecure Permissions.

An issue was discovered in GitLab Community and Enterprise Edition before 12.4 in the autocomplete feature. It has Insecure Permissions (issue 2 of 2).

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's Slack integration is incorrectly validating user input and allows to craft malicious URLs that are sent to slack.

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 allows a user with an expired password to access sensitive information through RSS feeds.

An issue was discovered in GitLab Community and Enterprise Edition 8.6 through 12.2.1. Under very specific conditions, commit titles and team member comments could become viewable to users who did not have permission to access these.

An information disclosure vulnerability exists in GitLab CE/EE <v12.3.2, <v12.2.6, and <v12.1.12 that allowed project milestones to be disclosed via groups browsing.

An improper access control vulnerability exists in GitLab <12.3.3 that allows an attacker to obtain container and dependency scanning reports through the merge request widget even though public pipelines were disabled.

GitLab 11.8 and later contains a security vulnerability that allows a user to obtain details of restricted pipelines via the merge request endpoint.

An information exposure vulnerability exists in gitlab.com <v12.3.2, <v12.2.6, and <v12.1.10 when using the blocking merge request feature, it was possible for an unauthenticated user to see the head pipeline data of a public project even though pipeline visibility was restricted.

GitLab 12.2.2 and below contains a security vulnerability that allows a guest user in a private project to see the merge request ID associated to an issue via the activity timeline.

Unauthorized Access to the Container Registry of other groups was discovered in GitLab Enterprise 12.0.0-pre. In other words, authenticated remote attackers can read Docker registries of other groups. When a legitimate user changes the path of a group, Docker registries are not adapted, leaving them in the old namespace. They are not protected and are available to all other users with no previous access to the repo.

An issue was discovered in GitLab Community and Enterprise Edition 9.0 and through 12.0.2. Users with access to issues, but not the repository were able to view the number of related merge requests on an issue. It has Incorrect Access Control.

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.