Insufficient permission checks in scheduled pipeline API in GitLab CE/EE 13.0+ allows an attacker to read variable names and values for scheduled pipelines on projects visible to the attacker. Affected versions are >=13.0, <13.3.9,>=13.4.0, <13.4.5,>=13.5.0, <13.5.2.
https://hackerone.com/reports/962462
https://gitlab.com/gitlab-org/gitlab/-/issues/239369
https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13351.json