Kibana Entity Store Auth Bypass Exposes Data
CVE-2026-78601 Published on September 2, 2026
Missing Authorization in Kibana Leading to Unauthorized Elasticsearch Index Data Exposure
Missing Authorization (CWE-862) in Kibana can lead to information disclosure via Privilege Abuse (CAPEC-122). An authorization control was not applied to a Kibana Entity Store configuration operation, allowing an authenticated user with elevated Kibana privileges to indirectly cause a background task to read from Elasticsearch indices that user is not authorized to access. Derived entity data from those indices is then exposed through the entity store output.
Vulnerability Analysis
CVE-2026-78601 can be exploited with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity, and no impact on availability.
Weakness Type
What is an AuthZ Vulnerability?
The software does not perform an authorization check when an actor attempts to access a resource or perform an action.
CVE-2026-78601 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-78601
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Affected Versions
Elastic Kibana:- Version 9.4.0, <= 9.4.4 is affected.