CVE-2026-16242

CVE CVE-2026-16242EUVD EUVD-2026-45897Published 2026-07-20T07:33:16.000ZLast changed 2026-08-12T20:50:49.000ZCVSS 9.4

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Red Hat — Red Hat OpenShift Container Platform 4.16 patch: 1785534428
Red Hat — Red Hat OpenShift Container Platform 4.17 patch: 1784914869
Red Hat — Red Hat OpenShift Container Platform 4.18 patch: 1784912882
Red Hat — Red Hat OpenShift Container Platform 4.19 patch: 1784913720
Red Hat — Red Hat OpenShift Container Platform 4.20 patch: 1785288843
Red Hat — Red Hat OpenShift Container Platform 4.21 patch: 1785301941
Red Hat — Red Hat OpenShift Container Platform 4.22 patch: 1785192936
Red Hat — multicluster engine for Kubernetes 2.10 patch: 1784905766
Red Hat — multicluster engine for Kubernetes 2.11 patch: 1784945966
Red Hat — multicluster engine for Kubernetes 2.17 patch: 1784856942
Red Hat — multicluster engine for Kubernetes 2.6 patch: 1784905804
Red Hat — multicluster engine for Kubernetes 2.8 patch: 1784905783
Red Hat — multicluster engine for Kubernetes 2.9 patch: 1784905769

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Red Hat — Red Hat OpenShift Container Platform

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