What’s Vulnerable › Vulnerabilities
CVE-2026-78584: Observable Response Discrepancy in Kibana Leading to Cross-Space Information Disclosure
- Severity: medium (CVSS 4.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-02 · updated 2026-09-03
- Weakness: CWE-204
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.
Affected products
- Kibana: from 9.4.0 before 9.4.4 — fixed in 9.4.4
How to fix
Upgrade to a fixed version: Kibana 9.4.4. Check the vendor advisory for mitigations.
References
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