What is GHSA-h699-694r-9xxf?

GHSA-h699-694r-9xxf is a security advisory published by GitHub Security Advisories with Medium severity. Incorrect Authorization (CWE-863) in Elastic Cloud on Kubernetes (ECK) can lead to unauthorized...

Which CVE IDs does GHSA-h699-694r-9xxf cover?

GHSA-h699-694r-9xxf covers the following CVE IDs: CVE-2026-78609. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-h699-694r-9xxf?

GHSA-h699-694r-9xxf has a CVSS v3 base score of 5.4, published by GitHub Security Advisories.

GHSA-h699-694r-9xxfMediumCVSS 5.4

Incorrect Authorization (CWE-863) in Elastic Cloud on Kubernetes (ECK) can lead to unauthorized...

Vendor

GitHub Security Advisories

Published

September 2, 2026

Last Modified

September 2, 2026

🔗 CVE IDs covered (1)

CVE-2026-78609 →

📋 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.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-78609
https://discuss.elastic.co/t/elastic-cloud-on-kubernetes-3-5-0-security-update-esa-2026-145/390105
https://github.com/advisories/GHSA-h699-694r-9xxf