Vulnerability DatabaseCVE-2026-78603
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CVE-2026-78603
Published:September 01, 2026
Updated:September 02, 2026
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 Packages
https://github.com/elastic/kibana.git (GITHUB):
Affected version(s) >=v9.0.0 <v9.4.6
Fix Suggestion:
Update to version v9.4.6
https://github.com/elastic/kibana.git (GITHUB):
Affected version(s) =v9.5.0 <v9.5.1
Fix Suggestion:
Update to version v9.5.1
Related Resources (1)
https://discuss.elastic.co/t/kibana-9-4-6-9-5-1-security-update-esa-2026-149/390069
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CVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Missing Authorization
CWE-862