What is CVE-2026-48618?

CVE-2026-48618 is a medium-severity vulnerability in Nodejs Node, classified under CWE-176. CVSS score: 6.5/10. Published 2026-06-26.

How severe is CVE-2026-48618?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Nodejs Node

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 i…

EPSS: 0.006 (44.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Nodejs Node — versions 22.22.3, 24.16.0, 26.3.0
Nodejs Node.js — versions 22.22.3, 24.16.0, 26.3.0

Weakness classification (CWE)

CWE-176

References

support@hackerone.com (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-48618?: CVE-2026-48618 is a medium-severity vulnerability in Nodejs Node, classified under CWE-176. CVSS score: 6.5/10. Published 2026-06-26.
How severe is CVE-2026-48618?: Medium severity. CVSS v3 base score is 6.5 out of 10.