CVE-2026-48930: Node.js

Critical severity, CVSS 9.8. EPSS: 0.3% chance of exploitation in the next 30 days.

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**.

Affected products

• Node.js Node.js: version 22.22.3 only; version 24.16.0 only; version 26.3.0 only

Published 2026-06-26. Last modified 2026-06-26.