VYPR
High severity8.5NVD Advisory· Published Jul 24, 2026· Updated Sep 7, 2026

CVE-2026-17107

CVE-2026-17107

Description

A flaw was found in the cluster-proxy service-proxy component used in Red Hat Advanced Cluster Management for Kubernetes (RHACM) and multicluster-engine (MCE). The service-proxy appends impersonation group headers to proxied requests without first removing caller-supplied values, and the spoke ServiceAccount holds unrestricted impersonation permissions. An authenticated hub principal can inject an Impersonate-Group header to escalate to cluster-admin on every managed cluster.

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Affected products

2

Patches

Vulnerability mechanics

References

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