CVE-2026-78601

Missing Authorization in Kibana Leading to Unauthorized Elasticsearch Index Data Exposure

Published: Sep 2, 2026Updated: Sep 3, 2026 Sources: CVE List NVDCWE-862

5.5MEDIUM

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:HPrivileges Required

High

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:LIntegrity

Low

A:NAvailability

None

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Weaknesses

CWE-862

Affected Products

Elastic

commercial·USaka elastic.co, elasticsearch co.

Kibana

Databases

and 1 more affected products View all →

Exploitability

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Initial Access

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References

https://discuss.elastic.co/t/kibana-9-4-5-security-update-esa-2026-147/390107

discuss.elastic.co

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