CVE-2021-4191

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
GitLabCNA
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 99%
VendorProductVersion
gitlabgitlab
13.0.0 ≤
𝑥
< 14.6.5
gitlabgitlab
13.0.0 ≤
𝑥
< 14.6.5
gitlabgitlab
14.7.0 ≤
𝑥
< 14.7.4
gitlabgitlab
14.7.0 ≤
𝑥
< 14.7.4
gitlabgitlab
14.8 ≤
𝑥
< 14.8.2
gitlabgitlab
14.8 ≤
𝑥
< 14.8.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
gitlab
sid
16.8.4-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
gitlab
xenial
ignored
trusty
ignored
References
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4191.json
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
https://gitlab.com/gitlab-org/gitlab/-/issues/343898
https://hackerone.com/reports/1089609