CVE-2021-22257

Name: CVE-2021-22257
Creator: NVD / NIST
Published: 2021-10-05T14:15:07.57+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.91%

Last modified Jun 17, 2026

CVE-2021-22257 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. An issue has been discovered in GitLab affecting all versions starting from 14.0 before 14.0.9, all versions starting from 14.1 before 14.1.4, all versions starting from 14.2 before 14.2.2. The route for /user.keys is not restricted on instances with public visibility disabled. EPSS estimates a 0.91% chance of exploitation in the next 30 days.

Description

An issue has been discovered in GitLab affecting all versions starting from 14.0 before 14.0.9, all versions starting from 14.1 before 14.1.4, all versions starting from 14.2 before 14.2.2. The route for /user.keys is not restricted on instances with public visibility disabled. This allows user enumeration on such instances.

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

0.91%

55.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Gitlab	Gitlab	>= 14.0.0, < 14.0.9
Gitlab	Gitlab	>= 14.1.0, < 14.1.4
Gitlab	Gitlab	>= 14.2.0, < 14.2.2

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22257.jsonVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/23832Broken Link
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22257.jsonVendor Advisory
https://gitlab.com/gitlab-org/gitlab/-/issues/23832Broken Link

Timeline

Published: Oct 5, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-22257?

How severe is CVE-2021-22257?

CVE-2021-22257 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.91% probability of exploitation in the next 30 days.

How do I fix CVE-2021-22257?

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-2021-22257?

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

Scan your code now

Source: NVD / NIST