CVE-2021-4191 Information

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Reference

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

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

NONE

Base Severity

5.3