CVE-2026-78603
Medium
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.
SeverityMedium
CVSS4.3
Exploit probability—
Product
Elastic Kibana
PublishedSep 1, 2026
First seenSep 1, 2026
Weakness typeCWE-862Missing authorization
How to fix
Update
- elastic kibana9.4.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| elastic kibana | 9.0.0 ≤ v < 9.4.6, 9.5.0 | 9.4.6 |
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