A vulnerability categorized as critical has been discovered in Amazon AWS AgentCore CLI up to 0.14.1/1.0.0-preview.8 . Impacted is an unknown function of the component collaborationInstruction Handler . Executing a manipulation can lead to code injection. This vulnerability is handled as CVE-2026-11393 . The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.