CVE-2026-71576

high Red Hat
CVSS v3 Base Score
8.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Confidentiality
None
Integrity
High
Availability
Low
Published: August 10, 2026 (27 days ago)
Last Modified: August 10, 2026
Vendor: Red Hat
Source: REDHAT

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.

CWE

CWE-345

Affected Products

Multicluster Global Hub

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov