CVE-2026-13318Network attack vector

Authenticated SSRF via unvalidated guest-agent IP

Published Jun 25, 2026 · Updated Jun 25, 2026

SSRF in Red Hat OpenShift Virtualization 4 allows remote authenticated users to open TCP tunnels through the virt-api service. The port-forward handler passes vmi.Status.Interfaces[0].IP directly to net.Dial without validating a guest-agent-controlled address. Exploitation requires kubevirt.io:edit permission and a non-masquerade VMI, and permits access to routable cluster-internal destinations despite NetworkPolicy isolation.

CVSS severity6.4
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Red Hat OpenShift Virtualization 4 allows remote authenticated users to open TCP tunnels through the virt-api service. The port-forward handler passes vmi.Status.Interfaces[0].IP directly to net.Dial without validating a guest-agent-controlled address. Exploitation requires kubevirt.io:edit permission and a non-masquerade VMI, and permits access to routable cluster-internal destinations despite NetworkPolicy isolation.

The record

CVE
CVE-2026-13318
Published
Jun 25, 2026
Updated
Jun 25, 2026
Vendor
389 Directory Server
Product
Red Hat OpenShift Virtualization
Classifications
CWE-918, T1090
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

389 Directory Server · Red Hat OpenShift VirtualizationAffected versions are unavailable in this record.

Published CVSS scores

6.4Red Hat, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1090Proxy

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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