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CVE-2026-78606

nvd nist
Published: Sep 1, 2026Modified: Sep 2, 2026

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4.2
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Exploitability: 1.6 / Impact: 2.5
Source: security@elastic.co (Secondary)

Description

Incorrect Authorization (CWE-863) in Kibana can lead to unauthorized disclosure, modification, and deletion of data via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). Where two authenticated principals originating from different authentication realms share the same username value, one could read, modify, and delete the other's private Elastic AI Assistant Knowledge Base entries.

Affected (3)

Products: Elastic: Kibana
Elastic
1 product
Kibana
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Elastic
Kibana
From 8.19.11 to 8.19.21
Kibana
From 9.3.0 to 9.4.6
Kibana
From 9.5.0 to 9.5.2

Related CWEs

CWE-863
Incorrect Authorization
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.

References (1)

Source: security@elastic.co
Vendor Advisory

Timeline

No history available yet.