CVE-2017-16118: Forwarded Project Forwarded

High severity, CVSS 7.5. EPSS: 1.9% chance of exploitation in the next 30 days.

The forwarded module is used by the Express.js framework to handle the X-Forwarded-For header. It is vulnerable to a regular expression denial of service when it's passed specially crafted input to parse. This causes the event loop to be blocked causing a denial of service condition.

Affected products

• Forwarded Project Forwarded: before 0.1.2 (fixed in 0.1.2)

Published 2018-06-07. Last modified 2026-06-17.