HexBrain

Node.js · Report #3656716

Embedded-nul hostnames can lead to silent authority rebinding due to c-string truncation in resolver bindings

Validstatus
mediumseverity
4upvotes
25 Jun 2026disclosed

Summary

A flaw in Node.js TLS hostname handling can cause Embedded-nul hostnames can lead to silent authority rebinding due to c-string truncation in resolver bindings.

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

How it was found

The write-up for this report has not been downloaded yet, or the program disclosed it without one. Read it on HackerOne.

This report was disclosed publicly on HackerOne and belongs to its author and the program. See the original