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High8.2Red Hat Linux

High [CVE-2026-42041] Authentication bypass due to prototype pollution of HTTP error handling

This high-severity Red Hat Linux advisory covers CVE-2026-42041 affecting Red Hat Advanced Cluster Management for Kubernetes 2.14, Red Hat Advanced Cluster Management for Kubernetes 2.15, Red Hat Advanced Cluster Security for Kubernetes 4.10.

CVE-2026-42041 Published Apr 24, 2026
CVE-2026-42041
Affected products & platforms
Red Hat LinuxUnclassified
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Summary

Authentication bypass due to prototype pollution of HTTP error handling. Red Hat rates this important (CVSS 8.2).

Weakness: CWE-915. Affected package(s): openshift-service-mesh/kiali-rhel9:1778164042, rhoai/odh-mod-arch-model-registry-rhel9:1780467147, openshift4/ose-agent-installer-ui-rhel9:1778539338, satellite/iop-advisor-frontend-rhel9:1781181673, openshift-service-mesh/kiali-rhel8:1778191378, rhacm2/console-rhel9:1780600823.

Resolved in Red Hat advisory RHSA-2026:14937 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Advanced Cluster Management for Kubernetes 2.14; Red Hat Advanced Cluster Management for Kubernetes 2.15; Red Hat Advanced Cluster Security for Kubernetes 4.10; Red Hat Advanced Cluster Security for Kubernetes 4.9; and 34 more.

Affected versions
  • openshift-service-mesh/kiali-rhel9:1778164042
  • rhoai/odh-mod-arch-model-registry-rhel9:1780467147
  • openshift4/ose-agent-installer-ui-rhel9:1778539338
  • satellite/iop-advisor-frontend-rhel9:1781181673
  • openshift-service-mesh/kiali-rhel8:1778191378
  • rhacm2/console-rhel9:1780600823
  • devspaces/code-rhel9:1779814592
  • multicluster-engine/console-mce-rhel9:1778383863
  • quay/quay-rhel8:1780891395
  • quay/quay-rhel9:1779922205
  • openshift-service-mesh/kiali-ossmc-rhel8:1778191473
  • quay/quay-rhel8:1779822261

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

Fixed versions
  • RHSA-2026:14937

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-2026:14937 (`sudo dnf update` / `yum update`).

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

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