CVE 2018-19583

GitLab CE/EE, versions 8.0 up to 11.x before 11.3.11, 11.4 before 11.4.8, and 11.5 before 11.5.1, would log access tokens in the Workhorse logs, permitting administrators with access to the logs to see another user's token.

See the CVE page on Mitre.org for more details.