CVE-2026-73266: falha de alta gravidade em Red Hat multicluster engine for Kubernetes 2.10
Clusterclaims-controller: confused deputy: tenant-controlled clusterclaim labels propagated to managedcluster, enabling cross-tenant managedclusterset join
Publicada em · Atualizada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.1epss 0.4%
A flaw was found in the clusterclaims-controller component of Multicluster Engine (MCE). An authenticated tenant can exploit this vulnerability by manipulating ClusterClaim labels. This allows the tenant to force a cluster to join a ManagedClusterSet belonging to another tenant. Such unauthorized access could enable the injection of policies and workloads into other tenants' clusters.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
Produtos afetados
Red Hat · multicluster engine for Kubernetes 2.10Red Hat · multicluster engine for Kubernetes 2.11Red Hat · multicluster engine for Kubernetes 2.17Red Hat · multicluster engine for Kubernetes 2.6Red Hat · multicluster engine for Kubernetes 2.8Red Hat · multicluster engine for Kubernetes 2.9CVEs relacionadas — Red Hat multicluster engine for Kubernetes 2.10
No mesmo produto, das mais perigosas para as menos.
CVE-2026-16242CRITICALHypershift: konnectivity proxy-server accepts agent connections without validating client certificatesEPSS 0.9%CVE-2026-73268CRITICALCluster-curator-controller: cluster-curator-controller: spec.install.overridejob allows arbitrary job spec injectionEPSS 0.9%CVE-2026-10059CRITICALCluster-curator-controller: cluster-curator-controller: namespace admin can escalate to cluster-wide curator authority via clustercurator serviceaccount tokenEPSS 0.6%CVE-2026-73267HIGHClusterclaims-controller: managedcluster deletion keyed solely on clusterclaim.spec.namespace with no local ownership checkEPSS 0.6%CVE-2026-66794CRITICALCluster-proxy-addon: cluster-proxy-addon: unauthenticated ssrf to arbitrary managed-cluster services via public routeEPSS 0.6%CVE-2026-75569HIGHMce-operator-bundle: all github actions pinned by mutable tag, not commit shaEPSS 0.6%
Referências
https://access.redhat.com/errata/RHSA-2026:59556https://access.redhat.com/errata/RHSA-2026:59557https://access.redhat.com/errata/RHSA-2026:59558https://access.redhat.com/errata/RHSA-2026:59559https://access.redhat.com/errata/RHSA-2026:59579https://access.redhat.com/errata/RHSA-2026:59593https://access.redhat.com/security/cve/CVE-2026-73266https://bugzilla.redhat.com/show_bug.cgi?id=2514217