CVE-2026-63138: Elastic Kibana

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Improper Neutralization of Special Elements in Data Query Logic (CWE-943) in Kibana can lead to information disclosure via NoSQL Injection (CAPEC-676). An authenticated user with access to the affected query functionality could submit specially crafted input that alters the intended query logic, returning data the user is not authorized to read.

Affected products

• Elastic Kibana: from 9.4.0, before 9.4.5 (fixed in 9.4.5); version 9.5.0 only

Published 2026-09-01. Last modified 2026-09-02.