Node.js · Report #3656869

Uppercase sni context matching can lead to mtls authorization bypass due to case-sensitive hostname matching

Validstatus

mediumseverity

7upvotes

25 Jun 2026disclosed

Summary

A inconsistency in Node.js hostname matching can cause a trust-policy bypass in multi-context mTLS setups.

This vulnerability affects all supported release lines: Node.js 22, Node.js 24, and Node.js 26.

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