Denial of Service via malformed message pre-authentication on leafnode port
Summary
Denial of Service via malformed message pre-authentication on leafnode port. Red Hat rates this important (CVSS 7.5). Weakness: CWE-1286. 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`).
- 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 1 day ago·verify at source
- RHSA-2026:21769
Official advisory · high-confidence parse· fetched 1 day 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 1 day ago·verify at source
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