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OpenAdvisories
Medium · 5.4 CVE-2026-78609 EUVD-2026-70052GHSA-h699-694r-9xxf

Incorrect Authorization in Elastic Cloud on Kubernetes Leading to Unauthorized Modification of Data

Published Sep 2, 2026 · Updated Sep 2, 2026 · Assigned by elastic

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 products

VendorProductAffectedFixed
Elastic Eck Operator 2.6.0 – ≤ 3.4.1 —

References