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CVE-2026-71566

9.3 · CRITICAL

FakeFish handles incoming credentials by passing them down to scripts.

Published Aug 17, 2026CWE-306EPSS 0.37%

Overview

CVE-2026-71566 is a critical-severity vulnerability. It was published on August 17, 2026 and has a CVSS 3.1 base score of 9.3 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.3, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/openshift-metal3/fakefish/security/advisories/GHSA-qpfr-jqjq-v83w

How CyberStrike helps

Frequently asked questions

What is CVE-2026-71566?

CVE-2026-71566 is a critical-severity vulnerability. It was published on August 17, 2026 and has a CVSS 3.1 base score of 9.3 (CRITICAL).

How severe is CVE-2026-71566?

This vulnerability has a CVSS 3.1 base score of 9.3, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-71566?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-71566?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-71566 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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