CVE-2026-13318: Kubevirt: sunucu taraflı istek sahteciliği (SSRF)

Açıklama (NVD)

A server-side request forgery (SSRF) flaw was found in KubeVirt's virt-api port-forward handler. When processing a port-forward request to a VirtualMachineInstance (VMI), virt-api reads the target IP from vmi.Status.Interfaces[0].IP and passes it directly to net.Dial() without validation. For VMIs using non-masquerade network bindings (bridge or secondary-only), this IP is reported by the QEMU guest agent running inside the VM and is fully controllable by the VM owner. An attacker with kubevirt.io:edit permissions can create a VM with a modified guest agent that reports an arbitrary IP address, then request port-forward to establish a bidirectional TCP tunnel from virt-api's cluster-internal network position to any routable destination, bypassing NetworkPolicy isolation.

Özet bilgiler

Ürün

Kubevirt Kubevirt

CVSS v3.1

6.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

EPSS

%0,24 (yüzdelik 15)

CWE

CWE-918

Yama

Geçici çözüm

Etkilenen sürümler

Kaynaklar

• NVD kaydı
• access.redhat.com
• bugzilla.redhat.com
• CWE-918