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.
https://www.debian.org/security/2018/dsa-4145
https://gitlab.com/gitlab-org/gitlab-ee/issues/3847
https://about.gitlab.com/2018/01/16/gitlab-10-dot-3-dot-4-released/