Dashboard / CVE-2026-13318

CVE-2026-13318

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 63/100
Published: 2026-06-26 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: Changed
C: Low
I: Low
A: None

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.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
kubevirt kubevirt -
redhat openshift_virtualization 4 – 4.22.0

References & Advisories (2)

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

6.4 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

EPSS — Exploitation Probability

0.24%
Raw Score 0.002360
Percentile 14.6%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00236
2026-10-28
0.00236

Intelligence Sources

nvd ref →

External Links