What is CVE-2021-22231?

CVE-2021-22231 is a low-severity vulnerability in GitLab. CVSS score: 3.5/10. Published 2021-07-07.

How severe is CVE-2021-22231?

Low severity. CVSS v3 base score is 3.5 out of 10.

Vulnerability in GitLab

CVE-2021-22231

A denial of service in user's profile page is found starting with GitLab CE/EE 8.0 that allows attacker to reject access to their profile page via using a specially crafted username.

Published 2021-07-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.010 (61.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 61.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

GitLab — versions >=8.0, <13.11.6, >=13.12, <13.12.6, >=14.0, <14.0.2

References

gitlab.com/gitlab-org/gitlab/-/issues/26295 (Broken Link)
hackerone.com/reports/475098 (Permissions Required)
gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22231.json (Vendor Advisory)

Frequently asked questions

What is CVE-2021-22231?: CVE-2021-22231 is a low-severity vulnerability in GitLab. CVSS score: 3.5/10. Published 2021-07-07.
How severe is CVE-2021-22231?: Low severity. CVSS v3 base score is 3.5 out of 10.