Deprecation Warning: punycode module in AWS CDK logs

[Sivakumar-CD]

Issue Description

I am using aws-cdk-lib and see the following deprecation warning in CloudWatch logs:

ERROR (node:9) [DEP0040] DeprecationWarning: The punycode module is deprecated. Please use a userland alternative instead.
(Use node --trace-deprecation ... to show where the warning was created)

• I checked my dependencies using yarn why punycode, and the module is used by aws-cdk-lib.
• I am not directly using punycode in my code.
• The issue happens even after updating AWS CDK.

Steps to Reproduce

1. Deploy an AWS CDK stack using Node.js.
2. Observe CloudWatch logs where this deprecation warning appears.

Expected Behavior

• AWS CDK should not use deprecated dependencies.

Environment

• AWS CDK Version: 2.1005.0
• Node.js Version:v23.9.0

Workaround

• I have tried updating AWS CDK (yarn upgrade aws-cdk-lib), but the issue persists.

Additional Context

• The punycode module was deprecated in Node.js 7 and removed in Node.js 17.
• The dependency tree shows it is required by aws-cdk-lib and ajv -> uri-js -> punycode.

Could AWS CDK remove this deprecated dependency?