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AWS AgentCore Gateway Adds Support for MCP 2026-07-28 Spec

AWS AgentCore Gateway Adds Support for MCP 2026-07-28 Spec

FIRST LOOK ATLAS OWASP HIGH Significant risk · Prioritise patching ▲ 7.2 AWS Machine Learning Blog

AWS has released AgentCore Gateway with native support for the Model Context Protocol (MCP) 2026-07-28 specification, enabling standardised tool-use and context-sharing across agentic AI workloads on AWS infrastructure. For defenders, MCP-compliant gateways dramatically expand the inter-agent communication surface, introducing new vectors for prompt injection through tool responses, malicious server impersonation, and privilege escalation across agent boundaries. Security teams operating agentic pipelines on AWS must now treat MCP endpoints as high-value targets requiring the same scrutiny applied to API gateways and identity providers.

AWS Launches Bedrock AgentCore for Autonomous Payments

AWS Launches Bedrock AgentCore for Autonomous Payments

FIRST LOOK ATLAS OWASP HIGH Significant risk · Prioritise patching ▲ 7.8 AWS Machine Learning Blog

AWS has launched Amazon Bedrock AgentCore Payments, a managed infrastructure layer that enables AI agents to autonomously transact with external model providers and services using the x402 payment protocol, without human intervention. This capability introduces a new class of financial attack surface where compromised or manipulated agents can autonomously spend real funds, exfiltrate value, or be redirected to malicious service endpoints. Defenders must now treat agent payment credentials and spending budgets as first-class financial controls, on par with cloud IAM policies.

AWS Launches Amazon Bedrock AgentCore Harness

AWS Launches Amazon Bedrock AgentCore Harness

FIRST LOOK ATLAS OWASP HIGH Significant risk · Prioritise patching ▲ 8.2 AWS Machine Learning Blog

AWS has made Amazon Bedrock AgentCore Harness generally available, providing a managed abstraction layer that reduces agent deployment to two API calls while bundling sandboxed compute, persistent memory, tool gateway, browser access, identity management, and observability. For defenders, this dramatically lowers the barrier to deploying autonomous agents with filesystem access, shell execution, web browsing, and multi-provider model switching — compressing what was a weeks-long infrastructure project into minutes. Security teams face an expanded attack surface where prompt injection, tool abuse, cross-session memory poisoning, and supply chain risks through AWS-curated skill catalogs now arrive as a single, tightly integrated managed service rather than individually reviewable components.

Amazon Bedrock AgentCore Ships with RAG and Memory

Amazon Bedrock AgentCore Ships with RAG and Memory

FIRST LOOK ATLAS OWASP HIGH Significant risk · Prioritise patching ▲ 7.2 AWS Machine Learning Blog

Amazon Bedrock AgentCore now enables production-grade agentic systems that combine RAG retrieval, persistent cross-session memory, and direct user-facing endpoints authenticated only via Cognito Bearer tokens — all surfaced through a single /invocations endpoint. This architecture creates compounded attack surfaces where adversarially crafted content in S3-backed knowledge bases can propagate through the retrieve_and_generate pipeline directly into technician workflows. The persistent AgentCore Memory layer introduces a new cross-session context poisoning vector that does not exist in stateless LLM deployments.

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