Description (CNA)
A flaw was found in the `cluster-proxy-addon` component of Multicluster Engine for Kubernetes. This vulnerability allows an unauthenticated attacker, who can access the user-facing route, to bypass authentication and authorization checks. By manipulating URL path segments, the attacker can proxy requests to arbitrary services across any managed cluster. This enables unauthorized access to internal services that would otherwise be protected, potentially leading to information disclosure or further compromise of the cluster environment.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Red Hat / multicluster engine for Kubernetes 2.10 | unaffected 1787173361 before * |
| Red Hat / multicluster engine for Kubernetes 2.11 | unaffected 1787276784 before * |
| Red Hat / multicluster engine for Kubernetes 2.17 | unaffected 1786983349 before * |
| Red Hat / multicluster engine for Kubernetes 2.6 | unaffected 1787275318 before * |
| Red Hat / multicluster engine for Kubernetes 2.8 | unaffected 1787275519 before * |
| Red Hat / multicluster engine for Kubernetes 2.9 | unaffected 1787274923 before * |
CWE
CWE-918
References
- https://access.redhat.com/errata/RHSA-2026:59556
- https://access.redhat.com/errata/RHSA-2026:59557
- https://access.redhat.com/errata/RHSA-2026:59558
- https://access.redhat.com/errata/RHSA-2026:59559
- https://access.redhat.com/errata/RHSA-2026:59579
- https://access.redhat.com/errata/RHSA-2026:59593
- https://access.redhat.com/security/cve/CVE-2026-66794
- https://bugzilla.redhat.com/show_bug.cgi?id=2507539
ADP enrichment
No English description supplied.
No references supplied.