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 Uncontrolled Resource Consumption.
https://gitlab.com/gitlab-org/gitlab-ce/issues/55653
https://about.gitlab.com/blog/categories/releases/
https://about.gitlab.com/2019/03/04/security-release-gitlab-11-dot-8-dot-1-released/