CVE-2026-48930

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**.

Score

CVSS 3.1 9.8 Critical

Status

Analyzed - support@hackerone.com

Published

2026-06-26

Last modified

2026-10-25

Weaknesses

CWE-284

Affected products

• Node (Nodejs)
• Node.js (Nodejs)

References

• https://nodejs.org/en/blog/vulnerability/june-2026-security-releases