CVE-2026-71566KubeVirt backend is not authenticated
Updated under an hour ago ()
Does this affect you?
It affects openshift-metal3 fakefish. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 9.3 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:H
- Weakness (CWE)
- CWE-306
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat-cnalr
- NVD analysis
- Awaiting Analysis
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
openshift-metal3 fakefish openshift_metal3:fakefish (from the name) | through 28f9a6b; 526550a not affected | CNA record |
References
- https://github.com/openshift-metal3/fakefish/security/advisories/GHSA-qpfr-jqjq-v83wvendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.