What is CVE-2021-22259?

CVE-2021-22259 is a medium-severity vulnerability in GitLab. CVSS score: 4.3/10. Published 2021-10-04.

How severe is CVE-2021-22259?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in GitLab

CVE-2021-22259

A potential DOS vulnerability was discovered in GitLab EE starting with version 12.6 due to lack of pagination in dependencies API.

Published 2021-10-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.010 (62.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.3% 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 >=12.6, <14.1.7

References

gitlab.com/gitlab-org/gitlab/-/issues/335146 (Broken Link)
gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22259.json (Vendor Advisory)

Frequently asked questions

What is CVE-2021-22259?: CVE-2021-22259 is a medium-severity vulnerability in GitLab. CVSS score: 4.3/10. Published 2021-10-04.
How severe is CVE-2021-22259?: Medium severity. CVSS v3 base score is 4.3 out of 10.