# CVE-2026-48934 — nodejs node

> As of 2026-06-29, CVE-2026-48934 is a MEDIUM-severity vulnerability in nodejs node, CVSS v3.1 4.3, EPSS 0.2% (16.0th percentile). Threadlinqs Intelligence links 2 tracked threat campaigns to CVE-2026-48934, most recently “Node.js Patches 11 Security Flaws Across v22.23.2, v24.18.1, v26.5.1 (HTTP/2 DoS, Permission Model Bypass, TLS/mTLS Issues)”.

**Last updated:** 2026-06-29

## What is 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**.

The record classifies CVE-2026-48934 under weakness class [CWE-295](https://intel.threadlinqs.com/cwe/CWE-295). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 106 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 4.3 — MEDIUM (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N`)
- **EPSS (FIRST):** 0.2% probability of exploitation in the next 30 days, higher than 16.0% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 2.8/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-06-26, last modified 2026-06-29

## Is CVE-2026-48934 being exploited?

It currently carries a trending score of 18 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [nodejs](https://intel.threadlinqs.com/vendors/nodejs): node

## How to fix CVE-2026-48934

No vendor patch reference has been recorded for CVE-2026-48934 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-48934

2 tracked threats in the Threadlinqs corpus reference CVE-2026-48934, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Node.js Patches 11 Security Flaws Across v22.23.2, v24.18.1, v26.5.1 (HTTP/2 DoS, Permission Model Bypass, TLS/mTLS Issues)](https://intel.threadlinqs.com/threat/TL-2026-1807) — HIGH · 2026-08-01
- [Node.js June 2026 Security Release — 12 Vulnerabilities Across 22.x/24.x/26.x Including Two High-Severity TLS Authentication Bypass and WebCrypto DoS Flaws (CVE-2026-48618, CVE-2026-48933)](https://intel.threadlinqs.com/threat/TL-2026-0866) — HIGH · 2026-06-19

## Sources

Enriched from CVE.org, FIRST EPSS. Last verified by Threadlinqs on 2026-10-10.

**Other references**

- [nodejs.org](https://nodejs.org/en/blog/vulnerability/june-2026-security-releases)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-48934
Full detection coverage and IOCs for threats exploiting CVE-2026-48934 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp