CVE-2026-78606

Incorrect Authorization in Kibana Leading to Unauthorized Disclosure, Modification, and Deletion of Data

Published Sep 1, 2026 CVSS 3.1 · 4.2 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Elastic
Elastic kibana
Vendors & Products Elastic
Elastic kibana
Type Values Removed Values Added
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.
Title Incorrect Authorization in Kibana Leading to Unauthorized Disclosure, Modification, and Deletion of Data
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 4.2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
elastic
Published
Updated
Sep 1, 2026, 7:40 PM
Reserved
Aug 24, 2026, 9:13 PM
Status
Analyzed
Published
Sep 1, 2026, 8:17 PM
Modified
Sep 2, 2026, 2:52 PM