CVE-2021-4191
First published: Mon Mar 28 2022(Updated: )
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.
Credit: cve@gitlab.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GitLab | >=13.0.0<14.6.5 | |
| GitLab | >=13.0.0<14.6.5 | |
| GitLab | >=14.7.0<14.7.4 | |
| GitLab | >=14.7.0<14.7.4 | |
| GitLab | >=14.8<14.8.2 | |
| GitLab | >=14.8<14.8.2 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-4191?
CVE-2021-4191 has a severity rating that indicates a medium risk due to potential user enumeration attacks.
How do I fix CVE-2021-4191?
To address CVE-2021-4191, users should upgrade their GitLab installations to a version later than 14.8.2.
What versions are affected by CVE-2021-4191?
CVE-2021-4191 affects GitLab CE/EE versions from 13.0 to 14.6.5, 14.7 to 14.7.4, and 14.8 to 14.8.2.
What is user enumeration in CVE-2021-4191?
User enumeration in CVE-2021-4191 refers to the ability of unauthenticated users to identify valid usernames through the GitLab GraphQL API.
Can CVE-2021-4191 impact private GitLab instances?
Yes, CVE-2021-4191 specifically impacts private GitLab instances that have restricted user sign-ups.
- agent/type
- agent/references
- agent/author
- agent/softwarecombine
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/severity
- agent/event
- agent/first-publish-date
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/gitlab
- canonical/gitlab
- version/gitlab/13.0.0
- version/gitlab/14.7.0
- version/gitlab/14.8