Vulnerability-Lookup

GHSA-R578-WHJQ-MCFV

Vulnerability from github – Published: 2026-06-26 12:30 – Updated: 2026-06-26 12:30

Details

A flaw was found in KubeVirt's migration proxy. When spec.configuration.migrations.disableTLS is set to true on the KubeVirt custom resource, the target virt-handler binds a plain TCP listener on all interfaces (0.0.0.0/::) on a random port with no authentication, peer allow-list, or handshake token. This listener proxies directly into the target virt-launcher's virtqemud control socket. An attacker with a running pod on the cluster network can connect to this listener and issue unfiltered libvirt RPC commands against another tenant's virtual machine, including reading VM memory and configuration, modifying VM state via QMP, or destroying the VM. The bind address is unconditionally 0.0.0.0 — configuring a dedicated migration network via migrations.network only changes the advertised migration IP, not the listener bind address, so the port remains reachable on the pod network even when a dedicated migration network is configured. The API documentation describes disableTLS as removing "the additional layer of live migration encryption" without disclosing that it also removes all mutual authentication.

Severity

8.5 (High)


                  
                    CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

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  ],
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    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-26T11:16:30Z",
    "severity": "HIGH"
  },
  "details": "A flaw was found in KubeVirt\u0027s migration proxy. When spec.configuration.migrations.disableTLS is set to true on the KubeVirt custom resource, the target virt-handler binds a plain TCP listener on all interfaces (0.0.0.0/::) on a random port with no authentication, peer allow-list, or handshake token. This listener proxies directly into the target virt-launcher\u0027s virtqemud control socket. An attacker with a running pod on the cluster network can connect to this listener and issue unfiltered libvirt RPC commands against another tenant\u0027s virtual machine, including reading VM memory and configuration, modifying VM state via QMP, or destroying the VM. The bind address is unconditionally 0.0.0.0 \u2014 configuring a dedicated migration network via migrations.network only changes the advertised migration IP, not the listener bind address, so the port remains reachable on the pod network even when a dedicated migration network is configured. The API documentation describes disableTLS as removing \"the additional layer of live migration encryption\" without disclosing that it also removes all mutual authentication.",
  "id": "GHSA-r578-whjq-mcfv",
  "modified": "2026-06-26T12:30:29Z",
  "published": "2026-06-26T12:30:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-13325"
    },
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      "url": "https://access.redhat.com/security/cve/CVE-2026-13325"
    },
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      "type": "WEB",
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    }
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  "schema_version": "1.4.0",
  "severity": [
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      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-13325 (GCVE-0-2026-13325)

Vulnerability from cvelistv5 – Published: 2026-06-26 10:41 – Updated: 2026-06-26 18:42

Title

Virt-handler-rhel9: kubevirt: kubevirt: disabletls migration setting removes authentication, exposing unauthenticated virtqemud proxy on all interfaces

Summary

Severity

8.5 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-306 - Missing Authentication for Critical Function

Assigner

redhat

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-13325	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2493378	issue-trackingx_refsource_REDHAT

Impacted products

1 product

Vendor	Product	Version
Red Hat	Red Hat OpenShift Virtualization 4	cpe:/a:redhat:container_native_virtualization:4

Date Public

2026-06-26 10:17

Credits

This issue was discovered by Huzaifa Sidhpurwala (Red Hat).

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JSON

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-R578-WHJQ-MCFV

CVE-2026-13325 (GCVE-0-2026-13325)

Tags

Sightings

Nomenclature