What’s Vulnerable › Vulnerabilities
CVE-2026-78603: Missing Authorization in Kibana Leading to Unauthorized Disclosure of Fleet Deployment Metadata
- 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: 2026-09-01 · updated 2026-09-02
- Weakness: CWE-862
Description
Missing Authorization (CWE-862) in Kibana can lead to information disclosure via Exploiting Incorrectly Configured Access Control Security Levels (CAPEC-180). An authenticated user holding minimal Elasticsearch privileges could bypass Kibana feature authorization and space access controls, resulting in the unauthorized disclosure of Fleet deployment metadata from the default Kibana space.
Affected products
- Kibana: from 9.0.0 before 9.4.6; 9.5.0 — fixed in 9.4.6
How to fix
Upgrade to a fixed version: Kibana 9.4.6. Check the vendor advisory for mitigations.
References
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