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Vulnerabilities

Vulnerability · CVE-2026-13318

KubeVirt virt-api port-forward handler vulnerable to SSRF via guest-controlled VMI IP address

Published Jun 26, 2026 · catalog updated Nov 4, 2026 · KubeVirt virt-api port-forward handler

Last checked Nov 7, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-13318. EPSS is 0.24%. Act only if a listed version of KubeVirt virt-api port-forward handler is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (KubeVirt virt-api port-forward handler).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.24%
Remediation
Advisory link
Affected products
Go kubevirt.io/kubevirt

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Go kubevirt.io/kubevirt0 → 1.10.0-rc.0

How to fix CVE-2026-13318

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-13318. EPSS is 0.24%. Act only if a listed version of KubeVirt virt-api port-forward handler is installed.

Which versions are affected?

Compare what you have installed with 0 → 1.10.0-rc.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-918: Server-Side Request Forgery (SSRF). EPSS 0.24%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 26, 2026 · GitHub Advisory Database

    Detected

    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 gue

  2. Nov 4, 2026 · GitHub Advisory Database

    Fix available

    kubevirt.io/kubevirt fixed in 1.10.0-rc.0

  3. Nov 4, 2026 · GitHub Advisory Database

    Fix available

    kubevirt.io/kubevirt fixed in 1.10.0-rc.0

  4. Nov 4, 2026 · GitHub Advisory Database

    Updated

    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 gue

Sources

References

Freshness

Last verified in this catalog Nov 7, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • Go Vulnerability DatabaseNov 5, 2026
  • GitHub Advisory DatabaseNov 5, 2026
  • OpenSSF OSV / OSV ScannerNov 5, 2026
  • CVE.orgNov 4, 2026