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CVE-2026-7374Kubevirt: kubevirt virt-handler: privilege escalation and node compromise via symlink following vulnerability

kubevirt; Red Hat Red Hat Container Native Virtualization 4.12; Red Hat Red Hat Container Native Virtualization 4.13; Red Hat Red Hat Container Native Virtuali… Veröffentlicht: (vor 5 Monaten)

Beschreibung

A flaw was found in KubeVirt's virt-handler component. This vulnerability allows an authenticated OpenShift user with edit permissions in a single namespace to exploit improper symlink validation when connecting to virtual machine console sockets. By replacing the console socket with a symlink to the host's container runtime (CRI-O) socket, an attacker can hijack virt-handler's privileged connection. This enables the attacker to access any Unix socket on the host, potentially leading to full control of the node and the entire cluster.

Schwachstellentyp (CWE): CWE-59

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

HerstellerProduktVersionen
container native virtualization 4.12 —
container native virtualization 4.13 —
container native virtualization 4.14 —
container native virtualization 4.15 —
container native virtualization 4.16 —
container native virtualization 4.17 —
container native virtualization 4.18 —
container native virtualization 4.19 —
container native virtualization 4.20 —
container native virtualization 4.21 —
Red Hat Red Hat Container Native Virtualization 4.12 all versions
Red Hat Red Hat Container Native Virtualization 4.13 all versions
Red Hat Red Hat Container Native Virtualization 4.14 all versions
Red Hat Red Hat Container Native Virtualization 4.15 all versions
Red Hat Red Hat Container Native Virtualization 4.16 all versions
Red Hat Red Hat Container Native Virtualization 4.17 all versions
Red Hat Red Hat Container Native Virtualization 4.18 all versions
Red Hat Red Hat Container Native Virtualization 4.19 all versions
Red Hat Red Hat Container Native Virtualization 4.20 all versions
Red Hat Red Hat Container Native Virtualization 4.21 all versions
— kubevirt < 1.6.6, 1.7.0 – < 1.7.4, 1.8.0 – < 1.8.3

Referenzen und Patches