CVE-2026-13318
published 2026-06-26CVE-2026-13318: 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…
PriorityP341medium6.4CVSS 3.1
AVNACLPRLUINSCCLILAN
EPSS
0.15%
4.6th percentile
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.
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| container-native-virtualization | virt-api | — | — |
| container-native-virtualization | virt-api-rhel9 | — | — |
| redhat | openshift_virtualization | 4 – 4.22.0 | — |
CVSS provenance
nvdv3.16.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
vendor_redhat6.4MEDIUM
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GHSA
A server-side request forgery (SSRF) flaw was found in KubeVirt's virt-api port-forward handler.
ghsa_unreviewed·2026-06-26
CVE-2026-13318 [MEDIUM] CWE-918 A server-side request forgery (SSRF) flaw was found in KubeVirt's virt-api port-forward handler.
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.
Red Hat
virt-api-rhel9: kubevirt: KubeVirt: SSRF in virt-api port-forward via unvalidated guest-agent-reported IP
vendor_redhat·2026-06-25·CVSS 6.4
CVE-2026-13318 [MEDIUM] CWE-918 virt-api-rhel9: kubevirt: KubeVirt: SSRF in virt-api port-forward via unvalidated guest-agent-reported IP
virt-api-rhel9: kubevirt: KubeVirt: SSRF in virt-api port-forward via unvalidated guest-agent-reported IP
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-i
No detection rules found.
No public exploits indexed.
2026-06-26
Published