8.5
High
CVE-2026-71576 A flaw was found in multicluster-global-hub
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Multicluster Global Hub | Versions not published | |
| Multicluster Global Hub 1.4.9 1788355599 | earliest → < 1788355599 | 1788355599 |
| Multicluster Global Hub 1.7.3 1788377424 | earliest → < 1788377424 | 1788377424 |
| Multicluster Global Hub 1.8.2 1788359454 | earliest → < 1788359454 | 1788359454 |
| Multicluster Global Hub 1.5.8 1789515288 | earliest → < 1789515288 | 1789515288 |
| Multicluster Global Hub 1.6.6 1790086176 | earliest → < 1790086176 | 1790086176 |
Other CVEs of Multicluster Global Hub
The 32 CVEs of Multicluster Global Hub →
CVE-2026-110744
A flaw was found in multicluster-global-hub-operator-bundle
7.2
High
CVE-2026-83550
A flaw was found in postgres-exporter
7.1
High
CVE-2026-66792
A flaw was found in the multicloud-operators-subscription component
9.9
Critical
CVE-2026-71577
A flaw was found in multicluster-global-hub
6.3
Medium