What is CVE-2026-71576?

CVE-2026-71576 is a high-severity vulnerability in Red Hat Multicluster Global Hub, classified under Insufficient Verification of Data Authenticity. CVSS score: 8.5/10. Published 2026-08-10.

How severe is CVE-2026-71576?

High severity. CVSS v3 base score is 8.5 out of 10.

Vulnerability in Red Hat Multicluster Global Hub

CVE-2026-71576

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…

CVSS v3 metric

CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L.

Affected products

Red Hat Multicluster Global Hub

Weakness classification (CWE)

CWE-345 — Insufficient Verification of Data Authenticity

References

secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
secalert@redhat.com (x_refsource_REDHAT, issue-tracking)

Frequently asked questions

What is CVE-2026-71576?: CVE-2026-71576 is a high-severity vulnerability in Red Hat Multicluster Global Hub, classified under Insufficient Verification of Data Authenticity. CVSS score: 8.5/10. Published 2026-08-10.
How severe is CVE-2026-71576?: High severity. CVSS v3 base score is 8.5 out of 10.