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High7.5Red Hat Linux

High [CVE-2026-32280] Denial of Service vulnerability in certificate chain building

This high-severity Red Hat Linux advisory covers CVE-2026-32280 affecting Red Hat Ansible Automation Platform 2.6 for RHEL 10, Red Hat Enterprise Linux Server (v. 7 ELS), Red Hat Ansible Automation Platform 2.5 for RHEL 8.

CVE-2026-32280 Published Apr 8, 2026
CVE-2026-32280
Affected products & platforms
Red Hat LinuxUnclassified
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Summary

Denial of Service vulnerability in certificate chain building. Red Hat rates this important (CVSS 7.5).

Weakness: CWE-770. Affected package(s): rhc, openshift-service-mesh/pilot-rhel8:1777319850, openshift-service-mesh/istio-rhel9-operator:1778149657, grafana-pcp, openshift-service-mesh/istio-cni-rhel8:1777374598, rhtas/client-server-rhel9:1780399582.

Resolved in Red Hat advisory RHSA-2026:11507 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Ansible Automation Platform 2.6 for RHEL 10; Red Hat Enterprise Linux Server (v. 7 ELS); Red Hat Ansible Automation Platform 2.5 for RHEL 8; Red Hat OpenShift Container Platform 4.14; and 121 more.

Affected versions
  • rhc-1:0.2.5-7.el8_10
  • openshift-service-mesh/pilot-rhel8:1777319850
  • openshift-service-mesh/istio-rhel9-operator:1778149657
  • grafana-pcp-0:5.1.1-14.el9_6
  • openshift-service-mesh/istio-cni-rhel8:1777374598
  • rhtas/client-server-rhel9:1780399582
  • skopeo-2:1.22.2-2.el10_2
  • host-metering-0:1.4.0-7.el7_9
  • container-tools:rhel8-8060020260515174849.ad008a3a
  • quay/quay-rhel9:1779922205
  • openshift-service-mesh/istio-rhel9-operator:1778151060
  • quay/quay-rhel8:1779822261

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

Fixed versions
  • RHSA-2026:11507

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-2026:11507 (`sudo dnf update` / `yum update`).

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

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