Description
FakeFish handles incoming credentials by passing them down
to scripts. This works for real hardware because in the end it's up to
the BMC to validate them. However, KubeVirt relies on a KUBECONFIG file
mounted to the container and completely ignores the credentials. This allows any user of the cluster to control VMs of the
user that created fakefish, power them on and off, and mount arbitrary CD
images to them.
Published: 2026-08-17
Score: 9.3 Critical
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 17 Aug 2026 14:30:00 +0000

Type Values Removed Values Added
Description FakeFish handles incoming credentials by passing them down to scripts. This works for real hardware because in the end it's up to the BMC to validate them. However, KubeVirt relies on a KUBECONFIG file mounted to the container and completely ignores the credentials. This allows any user of the cluster to control VMs of the user that created fakefish, power them on and off, and mount arbitrary CD images to them.
Title KubeVirt backend is not authenticated
Weaknesses CWE-306
References
Metrics cvssV3_1

{'score': 9.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:H'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat-cnalr

Published:

Updated: 2026-08-17T16:00:15.115Z

Reserved: 2026-08-07T12:08:03.283Z

Link: CVE-2026-71566

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-17T15:16:57.610

Modified: 2026-08-17T16:17:44.493

Link: CVE-2026-71566

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-17T15:45:03Z

Weaknesses
  • CWE-306

    Missing Authentication for Critical Function