CVE-2026-78606
Incorrect Authorization in Kibana Leading to Unauthorized Disclosure, Modification, and Deletion of Data
CVSS Score
4.2
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-863 |
| Vendor | elastic |
| Product | kibana |
| Published | Sep 1, 2026 |
| Last Updated | Sep 1, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
Elastic / Kibana
8.19.11 ≤ 8.19.20 9.3.0 ≤ 9.4.5 9.5.0 ≤ 9.5.1