CVE-2026-48934

A flaw in Node.js TLS host verification can cause an attacker to bypass certification validation

Medium · published June 26, 2026

CVSS v3.0
4.3
EPSS
0%
Percentile
16.5
In the wild
Unconfirmed
What it is

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**.

The record
Technical detail
CVSS v3.0
4.3 · MEDIUM
Vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00258 · 16.5th percentile
Published
2026-06-26T01:14Z
EPSS history
Timeline
  • 26 JUN 01:14Z
    A flaw in Node.js TLS host verification can cause an attacker to bypass certification validation
    cvelistv5