Is CVE-2026-78584 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-78584?

CVE-2026-78584 has a CVSS v3 severity of MEDIUM (4.3).

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CVE-2026-78584

Description

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.