CVE-2026-47219: Delvedor Find-My-Way

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

find-my-way is a framework-independent HTTP router that internally uses a Radix Tree and supports route parameters and wildcards. Versions prior to 9.7.0 are vulnerable to remotely triggerable DoS in find-my-way when it is used with Node's HTTP/2 server. The lookup() function passes req.method into find(), and find() indexes this.trees[method]. Since this.trees is a normal object, HTTP/2 method values like constructor, toString, or __proto__ can resolve inherited object properties instead of returning undefined. The code then treats that value like a router node and crashes when it reaches currentNode.prefix.length. This issue has been fixed in version 9.0.7.

Affected products

• Delvedor Find-My-Way: before 9.7.0 (fixed in 9.7.0)

Published 2026-07-28. Last modified 2026-07-30.