CVE-2026-78609 (GCVE-0-2026-78609)

Vulnerability from cvelistv5 – Published: 2026-09-02 14:43 – Updated: 2026-09-02 15:58
VLAI
Title
Incorrect Authorization in Elastic Cloud on Kubernetes Leading to Unauthorized Modification of Data
Summary
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.
Severity
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 15:42 UTC
CWE
  • CWE-863 - Incorrect Authorization
Assigner
elastic CNA under the mitre root
CNA scorecard C 69/100 over 161 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Elastic Eck Operator Affected: 2.6.0 , ≤ 3.4.1 (semver)
guessed Create a notification for this product.
Show details on NVD website
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