Incorrect Authorization (CWE-863) in Elastic Cloud on Kubernetes (ECK) can lead to unauthorized modification of data via Metadata Spoofing (CAPEC-690). An actor holding limited Kubernetes permissions confined to a single namespace could cause attacker-controlled certificate material to be included in the Elasticsearch client trust bundle managed by ECK in a separate namespace.
Advisories

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Fixes

Solution

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Workaround

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History

Thu, 03 Sep 2026 11:00:00 +0000

Type Values Removed Values Added
First Time appeared Elastic
Elastic eck Operator
Vendors & Products Elastic
Elastic eck Operator

Wed, 02 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Wed, 02 Sep 2026 10:45:00 +0000

Type Values Removed Values Added
Description Incorrect Authorization (CWE-863) in Elastic Cloud on Kubernetes (ECK) can lead to unauthorized modification of data via Metadata Spoofing (CAPEC-690). An actor holding limited Kubernetes permissions confined to a single namespace could cause attacker-controlled certificate material to be included in the Elasticsearch client trust bundle managed by ECK in a separate namespace.
Title Incorrect Authorization in Elastic Cloud on Kubernetes Leading to Unauthorized Modification of Data
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: elastic

Published:

Updated: 2026-09-02T15:58:13.193Z

Reserved: 2026-08-24T21:13:52.890Z

Link: CVE-2026-78609

cve-icon Vulnrichment

Updated: 2026-09-02T15:51:38.241Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-02T15:17:41.827

Modified: 2026-09-02T19:23:13.660

Link: CVE-2026-78609

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-03T10:45:05Z

Weaknesses