Description
A flaw was found in the Konnectivity proxy-server configuration for hosted control planes. The agent-facing listener was started without --cluster-ca-cert (and without token-based agent authentication), so client certificates were not validated. A remote attacker who can reach the Konnectivity cluster endpoint could connect as an unauthenticated agent, join the routing pool, and potentially proxy, inspect, modify, or drop control-plane-to-node traffic.
Metrics
CVSS 3.1 9.4/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:LWeakness enumeration
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | multicluster engine for Kubernetes 2.1 | — |
| Red Hat | multicluster engine for Kubernetes 2.1 | — |
| Red Hat | multicluster engine for Kubernetes 2.11 | — |
| Red Hat | multicluster engine for Kubernetes 2.17 | — |
| Red Hat | multicluster engine for Kubernetes 2.6 | — |
| Red Hat | multicluster engine for Kubernetes 2.8 | — |
| Red Hat | multicluster engine for Kubernetes 2.9 | — |
| Red Hat | Red Hat OpenShift Container Platform 4.14 | — |
| Red Hat | Red Hat OpenShift Container Platform 4.15 | — |
| Red Hat | Red Hat OpenShift Container Platform 4.16 | — |
| Red Hat | Red Hat OpenShift Container Platform 4.17 | — |
| Red Hat | Red Hat OpenShift Container Platform 4.18 | — |
| Red Hat | Red Hat OpenShift Container Platform 4.19 | — |
| Red Hat | Red Hat OpenShift Container Platform 4.20 | — |
| Red Hat | Red Hat OpenShift Container Platform 4.21 | — |
| Red Hat | Red Hat OpenShift Container Platform 4.22 | — |
| Red Hat | Logging Subsystem for Red Hat OpenShift | — |
| Red Hat | Multicluster Engine for Kubernetes | — |
| Red Hat | Multicluster Engine for Kubernetes | — |
| Red Hat | Multicluster Engine for Kubernetes | — |
| Red Hat | Multicluster Engine for Kubernetes | — |
| Red Hat | OpenShift API for Data Protection | — |
| Red Hat | OpenShift API for Data Protection | — |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2 | — |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2 | — |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2 | — |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2 | — |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2 | — |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2 | — |
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2 | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — |
References
- https://access.redhat.com/errata/RHSA-2026:46885
- https://access.redhat.com/errata/RHSA-2026:47388
- https://access.redhat.com/errata/RHSA-2026:47728
- https://access.redhat.com/errata/RHSA-2026:47735
- https://access.redhat.com/errata/RHSA-2026:47949
- https://access.redhat.com/errata/RHSA-2026:47953
- https://access.redhat.com/errata/RHSA-2026:47974
- https://access.redhat.com/errata/RHSA-2026:48284
- https://access.redhat.com/errata/RHSA-2026:48657
- https://access.redhat.com/errata/RHSA-2026:48670
- https://access.redhat.com/errata/RHSA-2026:48676
- https://access.redhat.com/errata/RHSA-2026:48693
- https://access.redhat.com/errata/RHSA-2026:48699
- https://access.redhat.com/errata/RHSA-2026:50758
- https://access.redhat.com/errata/RHSA-2026:56789
- https://access.redhat.com/errata/RHSA-2026:56912
- https://access.redhat.com/security/cve/CVE-2026-16242
- https://bugzilla.redhat.com/show_bug.cgi?id=2502690
- https://github.com/openshift/hypershift/pull/9031
Timeline
- Published
- Jul 20, 2026
- Last modified
- Sep 14, 2026
- NVD status
- Awaiting Analysis