Ipv6 address treated as hostnamem getaddrinfo ENOTFOUND [fd00:ec2::23]

[Defman]

Checkboxes for prior research

• I've gone through Developer Guide and API reference
• I've checked AWS Forums and StackOverflow.
• I've searched for previous similar issues and didn't find any solution.

Describe the bug

When using podidentity with eks the ip [fd00:ec2::23] is treated as a hostname.

Regression Issue

• Select this option if this issue appears to be a regression.

SDK version number

@aws-sdk/client-s3@3.654.0

Which JavaScript Runtime is this issue in?

Node.js

Details of the browser/Node.js/ReactNative version

22.9.0

Reproduction Steps

1. EKS Cluster running ipv6
2. Use podidentity
3. Use the s3-client lib to access s3 authenticated via podidentity

Observed Behavior

Tries to resolve [fd00:ec2::23] via dns

Expected Behavior

Should not try to resolve the ip via dns.

Possible Solution

No response

Additional Information/Context

EKS ipv6

[Defman]

Fixed in smithy-lang/smithy-typescript#1408

[Defman]

Actually I’ll leave this issue open until smithy is bumped.

[kuhe]

Workaround until the minimum version is bumped is to update your lockfile or make a fresh install.

[kuhe]

The minimum node-http-handler dependency version in the current version of the SDK is high enough to guarantee including the fix, so I'm closing this now.