CVE-2026-48618 — MEDIUM (6.5)

Vulnerability Description

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 Score

6.5

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Nodejs	Node.Js	22.22.3

Related Weaknesses (CWE)

CWE-176

References

https://nodejs.org/en/blog/vulnerability/june-2026-security-releasesPatchVendor Advisory

FAQ

What is CVE-2026-48618?

CVE-2026-48618 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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...

How severe is CVE-2026-48618?

CVE-2026-48618 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-48618?

Check the references section above for vendor advisories and patch information. Affected products include: Nodejs Node.Js.