Description
Incomplete Cleanup (CWE-459) in Elastic Cloud on Kubernetes (ECK) can lead to unauthorized access via Privilege Abuse (CAPEC-122). Authentication credentials persist after a cross-namespace association has been denied by RBAC enforcement, allowing a low-privileged tenant to retain unauthorized read access to the associated Elasticsearch cluster.
Affected products
elastic: elastic cloud on kubernetes
References1
- discuss.elastic.co/t/elastic-cloud-on-kubernetes-3-5-0-security… Vendor Advisory
Metrics
- CVSS 3.1
-
3.5
LOW
Score source: CNA
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N - EPSS — exploit probability
- 0% percentile: 21 · as of 2 November 2026
- CWE
- CWE-459
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.