Auth bypass in Red Hat Multicluster Engine For Kubernetes
CVE-2026-71297
A flaw was found in the maestro gRPC broker. This vulnerability allows a remote attacker, with a valid client certificate, to bypass authentication. This bypass enables the attacker to subscribe to other consumers' event streams, leading to unauthorized information disclosure, or to publish forged agent status, which can compromise data integrity.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-71297 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
Frequently asked questions
- What is CVE-2026-71297?
- CVE-2026-71297 is a medium-severity vulnerability in Red Hat Multicluster Engine For Kubernetes, classified under Missing Authentication for Critical Function. CVSS score: 5.4/10. Published 2026-10-05.
- How severe is CVE-2026-71297?
- Medium severity. CVSS v3 base score is 5.4 out of 10.