CVE-2021-22136

Severity: low (CVSS 3.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-05-13 · updated 2026-06-17
Weakness: CWE-613

Description

In Kibana versions before 7.12.0 and 6.8.15 a flaw in the session timeout was discovered where the xpack.security.session.idleTimeout setting is not being respected. This was caused by background polling activities unintentionally extending authenticated users sessions, preventing a user session from timing out.

Affected products

Kibana: before 6.8.15; from 7.0.0 before 7.12.0 — fixed in 6.8.15, 7.12.0

How to fix

Upgrade to a fixed version: Kibana 6.8.15, 7.12.0. Check the vendor advisory for mitigations.

References

https://discuss.elastic.co/t/elastic-stack-7-12-0-and-6-8-15-security-update/268125
https://discuss.elastic.co/t/elastic-stack-7-12-0-and-6-8-15-security-update/268125

Get alerted when CVE-2021-22136 or the next vulnerability affects your stack