CVE-2026-48934 Security feature bypass in node
An attacker can bypass TLS certificate validation in Node.js, allowing man-in-the-middle attacks against secure connections.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-48934?
CVE-2026-48934 is a medium-severity vulnerability in Nodejs Node.js, published on 26 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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**.
Weakness: CWE-295
Which versions are affected by CVE-2026-48934?
2 open source packages ship an affected version, including node and node-min. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
node Bitnami | From 22.22.3 | 22.23.0, 24.17.0, 26.3.1 |
node-min Bitnami | From 22.22.3 | 22.23.0, 24.17.0, 26.3.1 |
Products include Nodejs Node.js.
How do I fix CVE-2026-48934?
Upgrade node to a fixed version for your release line: 22.23.0, 24.17.0 or 26.3.1.
Is CVE-2026-48934 being exploited?
There is no known exploitation of CVE-2026-48934 in the wild and no public exploit code.
Other vulnerabilities in Nodejs Node.js
Sources
Also known as ALPINE-CVE-2026-48934, AZL-91215, BELL-CVE-2026-48934, BIT-node-2026-48934, BIT-node-min-2026-48934, DEBIAN-CVE-2026-48934 and 6 more.