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Medium5.3Red Hat Linux

Medium [CVE-2026-4867] Denial of Service via catastrophic backtracking from malformed URL parameters

This medium-severity Red Hat Linux advisory covers CVE-2026-4867 affecting cluster-observability-operator/logging-console-plugin-pf4-rhel9:1782839279, cluster-observability-operator/troubleshooting-panel-console-plugin-pf6-rhel9:1782839996, cluster-observability-operator/logging-console-plugin-pf5-rhel9:1782840539.

CVE-2026-4867 Published Mar 26, 2026
Affected products & platforms
Red Hat LinuxUnclassified
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Summary

Denial of Service via catastrophic backtracking from malformed URL parameters. Red Hat rates this moderate (CVSS 5.3).

Weakness: CWE-1333. Affected package(s): cluster-observability-operator/logging-console-plugin-pf4-rhel9:1782839279, cluster-observability-operator/troubleshooting-panel-console-plugin-pf6-rhel9:1782839996, cluster-observability-operator/logging-console-plugin-pf5-rhel9:1782840539.

Resolved in Red Hat advisory RHSA-2026:34342 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Enterprise Linux.

Affected versions
  • cluster-observability-operator/logging-console-plugin-pf4-rhel9:1782839279
  • cluster-observability-operator/troubleshooting-panel-console-plugin-pf6-rhel9:1782839996
  • cluster-observability-operator/logging-console-plugin-pf5-rhel9:1782840539

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

Fixed versions
  • RHSA-2026:34342

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-2026:34342 (`sudo dnf update` / `yum update`).

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

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