CVE-2026-66801
CVE-2026-66801: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityCritical9.9
Critical [CVE-2026-66801] shared Kafka gh-spec topic Write ACL plus spoofable CloudEvent source enables fleet-wide cluster-admin from any compromised managed hub
CVE-2026-66801Source published
shared Kafka gh-spec topic Write ACL plus spoofable CloudEvent source enables fleet-wide cluster-admin from any compromised managed hub. Red Hat rates this critical (CVSS 9.9). Weakness: CWE-290. Red Hat lists fixing advisory RHSA-2026:54577 with package multicluster-globalhub/multicluster-globalhub-rhel9-operator:1786621416, multicluster-globalhub/multicluster-globalhub-rhel9-operator:1786071343, multicluster-globalhub/multicluster-globalhub-rhel9-operator:1786067967, multicluster-globalhub/multicluster-globalhub-rhel9-operator:1785773214.
- Related products — impact not confirmed
- No product details extracted. Check the source bulletin.
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- multicluster-globalhub/multicluster-globalhub-rhel9-operator:1786621416
- multicluster-globalhub/multicluster-globalhub-rhel9-operator:1786071343
- multicluster-globalhub/multicluster-globalhub-rhel9-operator:1786067967
- multicluster-globalhub/multicluster-globalhub-rhel9-operator:1785773214
2 more entries in the full advisory.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
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