CVE Catalog

CVE-2026-47219

HighCVSS 7.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.46%

38th percentile - higher than 38% of all known CVEs

Summary

In find-my-way before version 9.7.0, the lookup() function passes req.method to find(), which indexes this.trees[method]. Since this.trees is a normal object, HTTP/2 method values like constructor can resolve inherited properties, causing a crash when accessing currentNode.prefix.length.

Risk Assessment

An attacker can send an HTTP/2 request with a method like constructor, causing the server to crash and resulting in denial of service.

Recommendation

Update find-my-way to version 9.0.7 or later, which includes a fix preventing crashes with special method values.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS