CVE-2026-78595: Elastic Kibana

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

Missing Authorization in Kibana Leading to Information Disclosure / Missing Authorization (CWE-862) in the Kibana Fleet feature can lead to information disclosure via Privilege Abuse (CAPEC-122). An authenticated user holding read-level Fleet agent privileges in one Kibana space could enumerate agent metadata and access diagnostic content belonging to agents enrolled in other Kibana spaces.

Affected products

• Elastic Kibana: from 9.1.0, up to and including 9.4.5; from 9.5.0, up to and including 9.5.2

Published 2026-09-03. Last modified 2026-09-08.