CVE-2021-4191
MEDIUM severity · CVSS 5.3
5.3CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactLow
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)91%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4191.jsonAdvisory
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4191.jsonAdvisory
- https://gitlab.com/gitlab-org/gitlab/-/issues/343898
- https://hackerone.com/reports/1089609Advisory
- https://gitlab.com/gitlab-org/gitlab/-/issues/343898
- https://hackerone.com/reports/1089609Advisory