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7.8 High

CVE-2026-113951 If an attacker can write to the filesystem of a container k8s cluster container, they can plant an exec credential…

Description

If an attacker can write to the filesystem of a container k8s cluster container, they can plant an exec credential plugin in /etc/kubernetes/admin.conf. kubectl will run that plugin as the macOS host user the next time someone pulls the cluster's kubeconfig onto the host with container k8s write-config or create and then runs kubectl against it — turning filesystem access inside an untrusted Linux container into arbitrary command execution on the host. This vulnerability is addressed in Container version 1.5.0.

Affected products and versions

Product Affected versions Fixed in
Container 1.5 earliest → < 1.5.0 1.5.0

References

Timeline

  1. Published
  2. Last modified

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