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CVE-2026-78609

nvd nist
Published: Sep 2, 2026Modified: Sep 4, 2026

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5.4
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Exploitability: 2.8 / Impact: 2.5
Source: security@elastic.co (Secondary)

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.

Affected (1)

Elastic
1 product
Elastic Cloud On Kubernetes
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Elastic Cloud On Kubernetes
From 2.6.0 to 3.5.0

Related CWEs

CWE-863
Incorrect Authorization
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.

References (1)

Source: security@elastic.co
Vendor Advisory

Timeline

No history available yet.