CVE-2026-78606

published 2026-09-01

CVE-2026-78606: Incorrect Authorization (CWE-863) in Kibana can lead to unauthorized disclosure, modification, and deletion of data via Accessing Functionality Not Properly…

Priority P4 23 medium 4.2 CVSS 3.1

AV N AC H PR L UI N S U C L I L A N

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

6 ranges

Vendor	Product	Version range	Fixed in
elastic	kibana	>= 8.19.11 < 8.19.21	8.19.21
elastic	kibana	8.19.11 – 8.19.20	—
elastic	kibana	>= 9.3.0 < 9.4.6	9.4.6
elastic	kibana	9.3.0 – 9.4.5	—
elastic	kibana	>= 9.5.0 < 9.5.2	9.5.2
elastic	kibana	9.5.0 – 9.5.1	—

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CWE-863