What is CVE-2021-22246?

CVE-2021-22246 is a high-severity vulnerability in GitLab, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.7/10. Published 2021-08-20.

How severe is CVE-2021-22246?

High severity. CVSS v3 base score is 7.7 out of 10.

Resource exhaustion in GitLab

CVE-2021-22246

A vulnerability was discovered in GitLab versions before 14.0.2, 13.12.6, 13.11.6. GitLab Webhook feature could be abused to perform denial of service attacks.

Published 2021-08-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.013 (70.0th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

GitLab — versions >=2.0, <13.11.6, >=13.12, <13.12.6, >=14.0, <14.0.2

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

gitlab.com/gitlab-org/gitlab/-/issues/280633 (Broken Link)
hackerone.com/reports/1029269 (Permissions Required, Third Party Advisory)
gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22246.json (Vendor Advisory)

Frequently asked questions

What is CVE-2021-22246?: CVE-2021-22246 is a high-severity vulnerability in GitLab, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.7/10. Published 2021-08-20.
How severe is CVE-2021-22246?: High severity. CVSS v3 base score is 7.7 out of 10.