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Security Advisories

CGA-c66r-cjfj-2vrq

Package

virt-controller-1.8

Component

github.com/opencontainers/runc

Latest update

Not affected

Aliases

  • CVE-2025-31133
  • GHSA-9493-h29p-rfm2
  • GO-2025-4096

Severity

Unknown
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References

  • https://nvd.nist.gov/vuln/detail/CVE-2025-31133

Updates

Status

Not affected

Justification

Vulnerable code not in execute path

Impact

This vulnerability only applies when runc executes containers via libcontainer.Container, where maskedPaths mount setup is raced during container init. KubeVirt does not invoke runc as a container runtime — it links only runc's libcontainer/cgroups subpackages for host-side cgroup management and never reaches the vulnerable mount-namespace setup code. Reference: upstream kubevirt closed every release-branch runc bump PR (e.g. https://github.com/kubevirt/kubevirt/pull/16928) with the maintainer determination "I reviewed the CVE mentioned, I believe we are not affected".

Status

Under investigation


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