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CVE-2021-4191

MEDIUMCVSS 5.3/10EPSS 80.00%

Last modified

CVE-2021-4191 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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.. EPSS estimates a 80.00% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
5.3/10

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

EPSS Probability
80.00%

99.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
GitlabGitlab>= 13.0.0, < 14.6.5
GitlabGitlab>= 14.7.0, < 14.7.4
GitlabGitlab>= 14.8, < 14.8.2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2021-4191?
CVE-2021-4191 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 80.00% probability of exploitation in the next 30 days.
How do I fix CVE-2021-4191?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-4191?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST