The GitLab project has released a new update that contains several important security fixes. We recommend that all GitLab installations be upgraded immediately to the new version of GitLab (GitLab 10.5.6).
More information about these vulnerabilities can be found in the Bitnami's blog post.
If you are running a GitLab instance with a version prior to 10.5.6, you will need to upgrade GitLab to the latest version by following this documentation.
If you have any questions about this security release, please do not hesitate to open a new thread.