CVE-2026-71576Multicluster-global-hub: multicluster-global-hub: manager trusts self-asserted evt.source() for leaf-hub identity in all status handlers
Updated under an hour ago ()
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It affects Red Hat Multicluster Global Hub 1.4.9. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 8.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L
- Weakness (CWE)
- CWE-345
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 29, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Red Hat Multicluster Global Hub 1.4.9 redhat:multicluster_globalhub | from 1788355599 not affected | CNA record |
References
- https://access.redhat.com/errata/RHSA-2026:67516vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:67842vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:68515vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:71597vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:73038vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:73419vendor-advisory, x-refsource-redhat
- https://access.redhat.com/security/cve/CVE-2026-71576vdb-entry, x-refsource-redhat
- https://bugzilla.redhat.com/show_bug.cgi?id=2512513issue-tracking, x-refsource-redhat
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.