Vulnerability CVE-2021-4191
Published: 2022-03-28

Description:
An issue has been discovered in GitLab CE/EE affecting versions 13.0 to 14.6.5, 14.7 to 14.7.4, and 14.8 to 14.8.2. Private GitLab instances with restricted sign-ups may be vulnerable to user enumeration to unauthenticated users through the GraphQL API.

Type:

CWE-287

 (Improper Authentication)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Gitlab -> Gitlab 

 References:
https://gitlab.com/gitlab-org/gitlab/-/issues/343898
https://hackerone.com/reports/1089609
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4191.json
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