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AWS Bedrock’s ‘isolated’ sandbox comes with a DNS escape hatch

AWS’ promise of “complete isolation” for agentic AI workflows on Bedrock is facing scrutiny after researchers found its sandbox mode isn’t as sealed as advertised. In a recent disclosure, BeyondTrust detailed how the “Sandbox” mode in AWS Bedrock AgentCore’s Code Interpreter can be abused to break isolation boundaries using DNS queries. While the sandbox blocks…