In all versions of GitLab CE/EE since version 11.3, the endpoint for auto-completing Assignee discloses the members of private groups.
https://hackerone.com/reports/627507
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39876.json
Source: Mitre, NVD
Published: 2022-03-28
Updated: 2022-04-04
Base Score: 4
Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N
Severity: Medium
Base Score: 4.3
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N