Securing Amazon Bedrock AgentCore Runtime with AWS WAF
AWS details two secure patterns for routing Amazon Bedrock AgentCore Runtime traffic through AWS WAF and VPC Interface Endpoints, eliminating direct access risks.

- AWS recommends two secure patterns for routing Bedrock AgentCore Runtime traffic through AWS WAF and VPC Interface Endpoints.
- Pattern 1 uses a Lambda proxy for request transformation, while Pattern 2 routes directly to VPC Endpoint ENI IPs.
- Both patterns have been tested end-to-end with AWS Signature Version 4 authentication.
- Resource policies are required to block direct-access backdoors and enforce WAF-only traffic flow.
Amazon Web Services has published guidance on securing Amazon Bedrock AgentCore Runtime by enforcing traffic through AWS WAF and VPC Interface Endpoints. The company outlines two architecture patterns designed to prevent direct internet access to the runtime while maintaining secure communication channels.
The first pattern introduces an AWS Lambda proxy between an internet-facing Application Load Balancer and the VPC Endpoint, allowing full control over request transformation before traffic reaches AgentCore Runtime. The second pattern routes traffic directly to the VPC Endpoint ENI IP addresses from the ALB, removing the Lambda intermediary and simplifying the architecture. Both patterns have been validated end-to-end with AWS Signature Version 4 authentication.
AWS also emphasizes closing direct-access backdoors by applying resource policies that restrict traffic to flow exclusively through AWS WAF, ensuring consistent security enforcement across all ingress points.
Source: Securing Amazon Bedrock AgentCore Runtime with AWS WAF. Read the full piece at the source.
Provides actionable security patterns for integrating Bedrock AgentCore Runtime with AWS WAF.
Helps organizations enforce consistent security policies for AI workloads in production environments.
Highlights AWS's commitment to securing AI services against direct internet exposure.
- AgentCore Runtime
- Amazon Bedrock's runtime environment for executing AI models and agents.
- VPC Interface Endpoint
- A private connection to AWS services within a Virtual Private Cloud, avoiding public internet exposure.
- AWS WAF
- AWS Web Application Firewall for filtering and monitoring HTTP(S) traffic to applications.
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