GitLab Critical Security Release: 16.7.2, 16.6.4, 16.5.6

On January 11, 2024, we released versions 16.7.2, 16.6.4, 16.5.6 for GitLab Community Edition (CE) and Enterprise Edition (EE). These versions contain important security fixes, and we strongly recommend that all GitLab installations be upgraded to one of these versions immediately. GitLab.com is already running the patched version. GitLab releases fixes for security vulnerabilities in security releases. For more information, you can visit our security FAQ . You can see all of our regular and security release blog posts here . In addition, the issues detailing each vulnerability are made public on our issue tracker 30 days after the release in which they were patched. We are dedicated to ensuring all aspects of GitLab that are exposed to customers or that host customer data are held to the highest security standards. As part of maintaining good security hygiene, it is highly recommended that all customers upgrade to the latest security release for their supported version. You can read more best practices in securing your GitLab instance in our blog post. Recommended Action We strongly recommend that all installations running a version affected by the issues described below are upgraded to the latest version as soon as possible . If you have not upgraded yet, be aware that there is a newer patch that includes additional fixes for recently discovered DB migration issue. Please upgrade to 16.7.3, 16.6.5, 16.5.7, or newer to prevent the migration issue. When no specific deployment type (omnibus, source code, helm chart, etc.) of a product is mentioned, this means all types are affected. Table of fixes Title Severity Account Takeover via password reset without user interactions Critical Bypass CODEOWNERS approval removal High Attacker can abuse Slack/Mattermost integrations to execute slash commands as another user High Workspaces able to be created under different root namespace Medium Commit signature validation ignores headers after signature Low Account Takeover via P