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6.4 Moyenne

CVE-2026-13318 A server-side request forgery (SSRF) flaw was found in KubeVirt's virt-api port-forward handler

Description

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.

Produits et versions touchés

Produit Versions touchées Corrigé en
Red Hat OpenShift Virtualization 4 Versions non publiées

Références

Chronologie

  1. Publiée
  2. Dernière modification

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