Red HatCVE-2026-71577
Red Hat: information disclosure
Medium6.3CVE-2026-71577 · Published Aug 10, 2026 · updated Sep 24, 2026
A flaw was found in multicluster-global-hub. During a ManagedClusterMigration, the system incorrectly grants all managed hubs read access to a shared communication topic. This allows a compromised managed hub to intercept and collect sensitive bootstrap kubeconfigs, which contain API server tokens intended for other hubs. These tokens have an extended validity of approximately 9.86 years, significantly increasing the risk of unauthorized access and information disclosure to other managed clusters.
Affected versions
The source does not list versions here. See the source advisory for affected products and fixes.
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-522
- www.cve.org/CVERecord?id=CVE-2026-71577
- nvd.nist.gov/vuln/detail/CVE-2026-71577
- access.redhat.com/errata/RHSA-2026:67516
- access.redhat.com/errata/RHSA-2026:67842
- access.redhat.com/errata/RHSA-2026:68515
- access.redhat.com/errata/RHSA-2026:71597
- access.redhat.com/security/cve/CVE-2026-71577
- bugzilla.redhat.com/show_bug.cgi?id=2512514
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