Vulnerability-Lookup

CVE-2026-71566 (GCVE-0-2026-71566)

Vulnerability from cvelistv5 – Published: 2026-08-17 14:22 – Updated: 2026-08-17 16:00

Title

KubeVirt backend is not authenticated

Summary

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.

Severity

9.3 (Critical)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-17 16:00 UTC

CWE

CWE-306 - Missing authentication for critical function

Assigner

redhat-cnalr

References

1 reference

URL	Tags
https://github.com/openshift-metal3/fakefish/secu…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
openshift-metal3	fakefish	Affected: 0 , ≤ 28f9a6b (git) Unaffected: 526550a (git)	guessed

Date Public

2026-08-13 16:18

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-71566

Vulnerability from fkie_nvd - Published: 2026-08-17 15:16 - Updated: 2026-08-17 16:17

Severity

9.3 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:H

Summary

References

	URL	Tags
	74b3a70d-cca6-4d34-9789-e83b222ae3be	https://github.com/openshift-metal3/fakefish/security/advisories/GHSA-qpfr-jqjq-v83w

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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          "defaultStatus": "unknown",
          "product": "fakefish",
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          "vendor": "openshift-metal3",
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          "confidentialityImpact": "NONE",
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          "privilegesRequired": "NONE",
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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-71566 (GCVE-0-2026-71566)

FKIE_CVE-2026-71566

Tags

Sightings

Nomenclature