High [CVE-2026-33997] Privilege validation bypass during plugin installation
This high-severity Red Hat Linux advisory covers CVE-2026-33997 affecting Red Hat multicluster global hub 1.4.3, Red Hat multicluster global hub 1.4.4, Red Hat multicluster global hub 1.6.0.
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Summary
Privilege validation bypass during plugin installation. Red Hat rates this important (CVSS 8.4).
Weakness: CWE-266. Affected package(s): multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1780167118, multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1778867753, multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1779579439.
Resolved in Red Hat advisory RHSA-2026:21769 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat multicluster global hub 1.4.3; Red Hat multicluster global hub 1.4.4; Red Hat multicluster global hub 1.6.0; Red Hat multicluster global hub 1.5.0; and 2 more.
- multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1780167118
- multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1778867753
- multicluster-globalhub/multicluster-globalhub-grafana-rhel9:1779579439
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:21769
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:21769 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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