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CVE-2026-48930 Details

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.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:5.6 MEDIUMVector:CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://nodejs.org/en/blog/vulnerability/june-2026-security-releases	[email protected]	PatchVendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-284	Improper Access Control	[email protected]

Affected Products

Product	Versions
nodejs node.js	22.22.3 24.16.0 26.3.0
CPE cpe:2.3:a:nodejs:node.js:22.22.3::::-::: cpe:2.3:a:nodejs:node.js:24.16.0::::-::: cpe:2.3:a:nodejs:node.js:26.3.0::::-::: Remediation No remediation found in references.

Change History

3 change records found show changes

Date	Action	Recorded By
Jun 26, 2026	Initial Analysis	[email protected]
Jun 26, 2026	CVE Modified	CISA-ADP
Jun 26, 2026	New CVE Received	[email protected]