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High8.1Red Hat Linux

High [CVE-2026-9277] Arbitrary code execution via command injection due to unescaped line terminators

This high-severity Red Hat Linux advisory covers CVE-2026-9277 affecting Cryostat 4 on RHEL 9, Red Hat Developer Hub 1.10, Red Hat Developer Hub 1.9.

CVE-2026-9277 Published May 22, 2026
CVE-2026-9277
Affected products & platforms
Red Hat LinuxUnclassified
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Summary

Arbitrary code execution via command injection due to unescaped line terminators. Red Hat rates this important (CVSS 8.1).

Weakness: CWE-78.

Affected package(s): openshift4/ose-console-rhel9:1782308675, cluster-observability-operator/troubleshooting-panel-console-plugin-pf6-rhel9:1782839996, cluster-observability-operator/distributed-tracing-console-plugin-pf5-rhel9:1782839981, openshift-service-mesh/kiali-rhel9:1780916345, cluster-observability-operator/distributed-tracing-console-plugin-pf4-rhel9:1782840519, quay/quay-rhel8:1781878070.

Resolved in Red Hat advisory RHSA-2026:26077 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Cryostat 4 on RHEL 9; Red Hat Developer Hub 1.10; Red Hat Developer Hub 1.9; Red Hat Discovery 2; and 27 more.

Affected versions
  • openshift4/ose-console-rhel9:1782308675
  • cluster-observability-operator/troubleshooting-panel-console-plugin-pf6-rhel9:1782839996
  • cluster-observability-operator/distributed-tracing-console-plugin-pf5-rhel9:1782839981
  • openshift-service-mesh/kiali-rhel9:1780916345
  • cluster-observability-operator/distributed-tracing-console-plugin-pf4-rhel9:1782840519
  • quay/quay-rhel8:1781878070
  • openshift-service-mesh/kiali-ossmc-rhel9:1780470245
  • openshift-service-mesh/kiali-ossmc-rhel9:1780470003
  • openshift-service-mesh/kiali-ossmc-rhel9:1780470706
  • cluster-observability-operator/distributed-tracing-console-plugin-rhel9:1782838753
  • cluster-observability-operator/logging-console-plugin-pf4-rhel9:1782839279
  • cluster-observability-operator/monitoring-console-plugin-pf5-rhel9:1782844225

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

Fixed versions
  • RHSA-2026:26077

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-2026:26077 (`sudo dnf update` / `yum update`).

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

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