controller security

About this tag
The controller security tag covers discussions about vulnerabilities and hardening in Kubernetes controllers, with a focus on KubeVirt's virt-controller. A recent thread details CVE-2025-64435, a logic flaw allowing pod impersonation that leads to denial-of-service on VirtualMachineInstances. The fix is included in KubeVirt 1.7.0-beta.0. Topics include attack vectors, lifecycle binding, and mitigation strategies for controller-level security in virtualized Kubernetes environments.

  1. KubeVirt CVE-2025-64435: Fix for VMI DoS via impersonation in virt-controller

    A logic flaw in KubeVirt’s virt-controller allows an attacker who can create pods in a target namespace to impersonate the legitimate virt-launcher pod for a running VirtualMachineInstance (VMI), causing the controller to bind lifecycle operations to the attacker-controlled pod and produce...
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    • controller security cve 2025 64435 kubevirt vmi dos
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    • Forum: Security Alerts