CVE-2026-49088: Elastic Kibana

Medium severity, CVSS 4.4. EPSS: 0.3% chance of exploitation in the next 30 days.

Insertion of Sensitive Information into Log File (CWE-532) in Kibana can lead to information disclosure. When the optional application performance monitoring (APM) instrumentation is enabled, sensitive request header values could be recorded in application logs, where they may be accessible to operators with log access.

Affected products

• Elastic Kibana: from 8.0.0, before 8.18.9 (fixed in 8.18.9); from 8.19.0, before 8.19.6 (fixed in 8.19.6); from 9.0.0, before 9.0.8 (fixed in 9.0.8); from 9.1.0, before 9.1.6 (fixed in 9.1.6)

Published 2026-07-01. Last modified 2026-07-02.