CVE-2026-78603 - Vulnerability Details - OpenCVE

Missing Authorization (CWE-862) in Kibana can lead to information disclosure via Exploiting Incorrectly Configured Access Control Security Levels (CAPEC-180). An authenticated user holding minimal Elasticsearch privileges could bypass Kibana feature authorization and space access controls, resulting in the unauthorized disclosure of Fleet deployment metadata from the default Kibana space.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://discuss.elastic.co/t/kibana-9-4-6-9-5-1-security-update-esa-2026-149/390069

History

Tue, 01 Sep 2026 22:00:00 +0000

Type	Values Removed	Values Added
Description		Missing Authorization (CWE-862) in Kibana can lead to information disclosure via Exploiting Incorrectly Configured Access Control Security Levels (CAPEC-180). An authenticated user holding minimal Elasticsearch privileges could bypass Kibana feature authorization and space access controls, resulting in the unauthorized disclosure of Fleet deployment metadata from the default Kibana space.
Title		Missing Authorization in Kibana Leading to Unauthorized Disclosure of Fleet Deployment Metadata
Weaknesses		CWE-862
References		https://discuss.elastic.co/t/kibana-9-4-6-9-5-1-security-update-esa-2026-149/390069
Metrics		cvssV3_1 `{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: elastic

Published: 2026-09-01T19:20:35.832Z

Updated: 2026-09-01T19:41:05.109Z

Reserved: 2026-08-24T21:13:52.889Z

Link: CVE-2026-78603

Vulnrichment

Updated: 2026-09-01T19:41:01.394Z

NVD

Status : Awaiting Analysis

Published: 2026-09-01T20:17:23.637

Modified: 2026-09-01T21:05:31.423

Link: CVE-2026-78603

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-862

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