HTTP Request Smuggling Vulnerability in Node.js 

PUBLISHED ON September 27, 2022
LAST UPDATED Sep 27, 2022

Last week, researchers discovered an HTTP request smuggling vulnerability in Node.js. This vulnerability affects all current and recent previous versions of Node.js, and is easy to exploit. This is only the latest in a series of CVEs discovered in the very popular Node.js in recent months. 

The full list of CVEs addressed by the most recent release can be found here: https://nodejs.org/en/blog/release/v18.9.1/ 

What Is HTTP Request Smuggling? 

HTTP request smuggling involves interfering with the way HTTP servers process HTTP requests. If a server is vulnerable to HTTP request smuggling, it will forward irregular HTTP requests to the back end. 

Considered a critical vulnerability, HTTP request smuggling could allow an attacker to bypass security controls on the target server. 

How to Address the Node.js Vulnerability 

Updating node.js to the most recent version is the best course of action. New security releases are now available for 18.x, 16.x, and 14x release lines. 

ThreatX Response to Node.js Vulnerability 

The ThreatX SOC addressed this vulnerability by testing WAF functionality, and writing several rules to help monitor for this attack. The team is keeping a close eye on this space. 

If you have questions or need more information, please contact us

About the Author

Neil Weitzel

A results-driven cybersecurity leader, Neil Weitzel is dedicated to empowering organizations through robust security strategies. With over 15 years of experience leading security programs and teams, Neil possesses a unique ability to align security initiatives with business goals. As the current Director of Security Operations at ThreatX, he excels at identifying and mitigating risks, ensuring business continuity and resilience. Neil's track record includes successful leadership roles at Cognizant, Synopsys, and Cygilant, where he consistently built and strengthened security postures. An active thought leader, Neil is a frequent speaker and adjunct lecturer, contributing to the cybersecurity community's growth and development.