What is CVE-2021-22139?

CVE-2021-22139 is a medium-severity vulnerability in Elastic Kibana, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2021-05-13.

How severe is CVE-2021-22139?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Resource exhaustion in Elastic Kibana

CVE-2021-22139

Kibana versions before 7.12.1 contain a denial of service vulnerability was found in the webhook actions due to a lack of timeout or a limit on the request size. An attacker with permissions to create webhook actions could drain the Kibana host connection pool, making Kibana unavailable for all other users.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.010 (59.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Elastic Kibana — versions before 7.12.1

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

security@elastic.co (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-22139?: CVE-2021-22139 is a medium-severity vulnerability in Elastic Kibana, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2021-05-13.
How severe is CVE-2021-22139?: Medium severity. CVSS v3 base score is 6.5 out of 10.