What is CVE-2026-48934?

CVE-2026-48934 is a medium-severity vulnerability in Nodejs Node. CVSS score: 4.3/10. Published 2026-06-26.

How severe is CVE-2026-48934?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Nodejs Node

CVE-2026-48934

A flaw in Node.js TLS host verification can cause an attacker to bypass certification validation. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.

EPSS: 0.003 (20.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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

References

support@hackerone.com (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-48934?: CVE-2026-48934 is a medium-severity vulnerability in Nodejs Node. CVSS score: 4.3/10. Published 2026-06-26.
How severe is CVE-2026-48934?: Medium severity. CVSS v3 base score is 4.3 out of 10.