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High8.6Red Hat Linux

High [CVE-2026-44492] Proxy bypass via IPv4-mapped IPv6 address non-normalization

This high-severity Red Hat Linux advisory covers CVE-2026-44492 affecting Red Hat Advanced Cluster Management for Kubernetes 2.13, Red Hat Advanced Cluster Management for Kubernetes 2.14, Red Hat Advanced Cluster Security for Kubernetes 4.10.

CVE-2026-44492 Published Jun 11, 2026
CVE-2026-44492
Affected products & platforms
Red Hat LinuxUnclassified
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Summary

Proxy bypass via IPv4-mapped IPv6 address non-normalization. Red Hat rates this important (CVSS 8.6).

Weakness: CWE-289. Affected package(s): openshift-service-mesh/kiali-ossmc-rhel9:1782201851, openshift-service-mesh/kiali-ossmc-rhel9:1782231869, openshift4/ose-console-rhel9:1782244020, advanced-cluster-security/rhacs-main-rhel8:1779293013, discovery/discovery-ui-rhel9:1782166952, openshift4/ose-monitoring-plugin-rhel9:1781731914.

Resolved in Red Hat advisory RHSA-2026:26234 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.13; Red Hat Advanced Cluster Management for Kubernetes 2.14; Red Hat Advanced Cluster Security for Kubernetes 4.10; Red Hat Advanced Cluster Security for Kubernetes 4.9; and 45 more.

Affected versions
  • openshift-service-mesh/kiali-ossmc-rhel9:1782201851
  • openshift-service-mesh/kiali-ossmc-rhel9:1782231869
  • openshift4/ose-console-rhel9:1782244020
  • advanced-cluster-security/rhacs-main-rhel8:1779293013
  • discovery/discovery-ui-rhel9:1782166952
  • openshift4/ose-monitoring-plugin-rhel9:1781731914
  • openshift4/ose-console:1782127091
  • openshift-service-mesh/kiali-ossmc-rhel9:1782201894
  • openshift-service-mesh/kiali-ossmc-rhel9:1782201696
  • rhacm2/console-rhel9:1782157514
  • container-native-virtualization/kubevirt-console-plugin-rhel9:1782356760
  • rhdh/rhdh-hub-rhel9:1781187342

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions
  • RHSA-2026:26234

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Update the affected package(s) to the fixed version shipped in RHSA-2026:26234 (`sudo dnf update` / `yum update`).

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

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