CVE-2026-64676 Kata Containers: Unauthorized mem-agent ttRPC methods let an untrusted host tamper with confidential-guest memory

Kata Containers is an open source implementation of lightweight Virtual Machines VMs that perform like containers. In versions prior to 4.0.0, the kata-agent is vulnerable to an authorization bypass in confidential-guest memory management. In Confidential Containers CoCo deployments, the kata-age...

CVE-2026-64676

Kata Containers versions before 4.0.0: the kata-agent is vulnerable to an authorization bypass in confidential-guest memory management. In Confidential Containers deployments, the agent enforces an OPA/Rego-based AgentPolicy to authorize every ttRPC call; two mem-agent–related ttRPC methods miss ...

CVE-2026-64676 Kata Containers: Unauthorized mem-agent ttRPC methods let an untrusted host tamper with confidential-guest memory

Kata Containers is an open source implementation of lightweight Virtual Machines VMs that perform like containers. In versions prior to 4.0.0, the kata-agent is vulnerable to an authorization bypass in confidential-guest memory management. In Confidential Containers CoCo deployments, the kata-age...