CVE-2026-71576
High
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.
SeverityHigh
CVSS8.5
Exploit probability—
ProductMulticluster Globalhub 1.4
PublishedAug 10, 2026
First seenAug 10, 2026
Weakness typeCWE-345CWE-345
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| multicluster_globalhub 1.4 | No range specified | — |
| multicluster_globalhub 1.5 | No range specified | — |
| multicluster_globalhub 1.6 | No range specified | — |
| multicluster_globalhub 1.7 | No range specified | — |
| multicluster_globalhub 1.8 | No range specified | — |
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