CVE-2026-78603

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.

CVSS Vector

Affected Products

References

• https://discuss.elastic.co/t/kibana-9-4-6-9-5-1-security-update-esa-2026-149/390069