CVE-2021-37939: Elastic Kibana

Low severity, CVSS 2.7. EPSS: 0.5% chance of exploitation in the next 30 days.

It was discovered that Kibana’s JIRA connector & IBM Resilient connector could be used to return HTTP response data on internal hosts, which may be intentionally hidden from public view. Using this vulnerability, a malicious user with the ability to create connectors, could utilize these connectors to view limited HTTP response data on hosts accessible to the cluster.

Affected products

• Elastic Kibana: from 7.8.0, before 7.15.2 (fixed in 7.15.2)

Published 2021-11-18. Last modified 2026-06-17.