CVE-2026-48930

CriticalCVSS 9.8/10Last modified Oct 25, 2026

Description

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**.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-284

Affected software

Vendor	Product	Versions
nodejs	node	>= 22.22.3, <= 22.22.3; >= 24.16.0, <= 24.16.0; >= 26.3.0, <= 26.3.0

References

https://nodejs.org/en/blog/vulnerability/june-2026-security-releasesPatch, Vendor Advisory

Timeline

Published: Jun 26, 2026
Last modified: Oct 25, 2026
NVD status: Analyzed

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