What is CVE-2021-22230?

CVE-2021-22230 is a medium-severity vulnerability in GitLab. CVSS score: 4.9/10. Published 2021-07-07.

How severe is CVE-2021-22230?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Vulnerability in GitLab

CVE-2021-22230

Improper code rendering while rendering merge requests could be exploited to submit malicious code. This vulnerability affects GitLab CE/EE 9.3 and later through 13.11.6, 13.12.6, and 14.0.2.

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

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.010 (60.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.2% 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 >=9.3, <13.11.6, >=13.12, <13.12.6, >=14.0, <14.0.2

References

gitlab.com/gitlab-org/gitlab/-/issues/211976 (Broken Link)
gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22230.json (Vendor Advisory)

Frequently asked questions

What is CVE-2021-22230?: CVE-2021-22230 is a medium-severity vulnerability in GitLab. CVSS score: 4.9/10. Published 2021-07-07.
How severe is CVE-2021-22230?: Medium severity. CVSS v3 base score is 4.9 out of 10.