CVE-2026-48618

A flaw in Node.js TLS hostname handling can cause Node.js unicode dot separator handling can lead to tls wildcard-depth authentication bypass due to resolver and verifier hostname normalization mismat. This can lead to confidentiality impact or bypass of the intended security boundary under affected configurations. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://nodejs.org/en/blog/vulnerability/june-2026-security-releases	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	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::::-:::

History

26 Jun 2026, 20:18

Type	Values Removed	Values Added
CPE		cpe:2.3:a:nodejs:node.js:22.22.3::::-::: cpe:2.3:a:nodejs:node.js:26.3.0::::-::: cpe:2.3:a:nodejs:node.js:24.16.0::::-:::
CVSS	v2 : ~~unknown~~ v3 : ~~7.7~~	v2 : unknown v3 : 6.5
References	~~() https://nodejs.org/en/blog/vulnerability/june-2026-security-releases -~~	() https://nodejs.org/en/blog/vulnerability/june-2026-security-releases - Patch, Vendor Advisory
First Time		Nodejs Nodejs node.js

26 Jun 2026, 02:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-26 02:16

Updated : 2026-06-26 20:18

NVD link : CVE-2026-48618

Mitre link : CVE-2026-48618

CVE.ORG link : CVE-2026-48618

JSON object : View

Products Affected

nodejs

node.js

CWE

CWE-176

Improper Handling of Unicode Encoding

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