CVE-2026-78584: Elastic Kibana

Medium severity, CVSS 4.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Observable Response Discrepancy (CWE-204) in the Kibana Osquery feature can lead to information disclosure via Query System for Information (CAPEC-54). An authenticated user holding Osquery live-query privileges could determine whether a scheduled query identifier exists in a Kibana space they are not authorized to access.

Affected products

• Elastic Kibana: from 9.4.0, before 9.4.4 (fixed in 9.4.4)

Published 2026-09-02. Last modified 2026-09-03.