CVE-2026-71566 — CRITICAL (9.3)

Vulnerability 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.

CVSS Score

9.3

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality

NONE

Integrity

LOW

Availability

HIGH

Related Weaknesses (CWE)

CWE-306

References

https://github.com/openshift-metal3/fakefish/security/advisories/GHSA-qpfr-jqjq-

FAQ

What is CVE-2026-71566?

CVE-2026-71566 is a vulnerability with a CVSS score of 9.3 (CRITICAL). 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 f...

How severe is CVE-2026-71566?

CVE-2026-71566 has been rated CRITICAL with a CVSS base score of 9.3/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-71566?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.