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2 vulnerabilities found for Multicluster Global Hub 1.8.2 by Red Hat
CVE-2026-71577 (GCVE-0-2026-71577)
Vulnerability from cvelistv5
Published
2026-08-10 16:43
Modified
2026-09-29 17:21
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-522 - Insufficiently Protected Credentials
Summary
A flaw was found in multicluster-global-hub. During a ManagedClusterMigration, the system incorrectly grants all managed hubs read access to a shared communication topic. This allows a compromised managed hub to intercept and collect sensitive bootstrap kubeconfigs, which contain API server tokens intended for other hubs. These tokens have an extended validity of approximately 9.86 years, significantly increasing the risk of unauthorized access and information disclosure to other managed clusters.
References
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Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Multicluster Global Hub 1.4.9 |
Unaffected: 1788355417 < * cpe:/a:redhat:multicluster_globalhub:1.4::el9 |
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CVE-2026-71576 (GCVE-0-2026-71576)
Vulnerability from cvelistv5
Published
2026-08-10 16:41
Modified
2026-09-29 16:43
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-345 - Insufficient Verification of Data Authenticity
Summary
A flaw was found in multicluster-global-hub. The manager component improperly validates the source identity of incoming CloudEvents on Kafka status topics. A remote attacker, after compromising a managed hub and obtaining its Kafka client certificate, can manipulate the self-asserted source identity. This allows the attacker to falsify or delete critical data, such as compliance, inventory, and cluster health information, belonging to other hubs in the database.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Multicluster Global Hub 1.4.9 |
Unaffected: 1788355599 < * cpe:/a:redhat:multicluster_globalhub:1.4::el9 |
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|
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