CVE-2026-10059 (GCVE-0-2026-10059)

Vulnerability from cvelistv5 – Published: 2026-08-05 08:54 – Updated: 2026-09-08 12:18
VLAI
Title
Cluster-curator-controller: cluster-curator-controller: namespace admin can escalate to cluster-wide curator authority via clustercurator serviceaccount token
Summary
A flaw was found in the Multicluster Engine for Kubernetes ClusterCurator controller. A tenant administrator with namespace-scoped privileges can exploit this vulnerability by creating a namespaced ClusterCurator. This action inadvertently grants the tenant administrator the ability to mint a token for a ServiceAccount with cluster-wide administrative authority. This leads to a privilege escalation, allowing the tenant administrator to gain full control over the cluster.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 14:21 UTC
CWE
  • CWE-266 - Incorrect Privilege Assignment
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1042 records in the last 180 days details
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:59556 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:59557 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:59558 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:59559 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:59579 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-10059 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2483187 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version CPE status
Red Hat multicluster engine for Kubernetes 2.1 Unaffected: 1787201612 , < * (rpm)
    cpe:/a:redhat:multicluster_engine:2.10::el9
Create a notification for this product.
Red Hat multicluster engine for Kubernetes 2.11 Unaffected: 1787238383 , < * (rpm)
    cpe:/a:redhat:multicluster_engine:2.11::el9
Create a notification for this product.
Red Hat multicluster engine for Kubernetes 2.6 Unaffected: 1787264185 , < * (rpm)
    cpe:/a:redhat:multicluster_engine:2.6::el9
Create a notification for this product.
Red Hat multicluster engine for Kubernetes 2.8 Unaffected: 1787259011 , < * (rpm)
    cpe:/a:redhat:multicluster_engine:2.8::el9
Create a notification for this product.
Red Hat multicluster engine for Kubernetes 2.9 Unaffected: 1787201646 , < * (rpm)
    cpe:/a:redhat:multicluster_engine:2.9::el9
Create a notification for this product.
Date Public
2026-08-05 08:35
Show details on NVD website

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}



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