CVE-2026-71577
Last modified
CVE-2026-71577 is a medium-severity vulnerability rated 6.3/10 on the CVSS scale. 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. EPSS estimates a 0.37% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Multicluster Global Hub 1.4.9 | All versions |
| Red Hat | Multicluster Global Hub 1.5.8 | All versions |
| Red Hat | Multicluster Global Hub 1.7.3 | All versions |
| Red Hat | Multicluster Global Hub 1.8.2 | All versions |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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