VULNERABILITY INTELLIGENCE

CVE-2026-78609

CVSS score5.4 MEDIUM
EPSS probability0.15%
CISA KEVNot currently listed
Published2026-09-02
Last modified2026-09-04
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

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.

Weakness classification

  • security@elastic.co: CWE-863

Primary references