CVE-2026-71576

HighCVSS 8.5/10Last modified Oct 24, 2026

Description

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.

Metrics

CVSS 3.1 8.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L

Weakness enumeration

CWE-345

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
Red Hat	Multicluster Global Hub 1.4.9	—
Red Hat	Multicluster Global Hub 1.5.8	—
Red Hat	Multicluster Global Hub 1.6.6	—
Red Hat	Multicluster Global Hub 1.7.3	—
Red Hat	Multicluster Global Hub 1.8.2	—
Red Hat	Multicluster Global Hub 1.8.2	—

References

Timeline

Published: Aug 10, 2026
Last modified: Oct 24, 2026
NVD status: Awaiting Analysis

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