CVE-2026-47219

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/delvedor/find-my-way/security/advisories/GHSA-c96f-x56v-gq3h

Configurations

No configuration.

History

23 Oct 2026, 23:10

Type	Values Removed	Values Added
Summary		(es) find-my-way es un router HTTP independiente del framework que internamente utiliza un Árbol Radix y soporta parámetros de ruta y comodines. Las versiones anteriores a la 9.7.0 son vulnerables a un DoS que puede ser activado remotamente en find-my-way cuando se utiliza con el servidor HTTP/2 de Node. La función lookup() pasa req.method a find(), y find() indexa this.trees[method]. Dado que this.trees es un objeto normal, los valores de método HTTP/2 como constructor, toString o __proto__ pueden resolver propiedades de objeto heredadas en lugar de devolver undefined. El código entonces trata ese valor como un nodo de router y falla cuando alcanza currentNode.prefix.length. Este problema ha sido solucionado en la versión 9.0.7.

Information

Published : 2026-07-28 23:17

Updated : 2026-10-23 23:10

NVD link : CVE-2026-47219

Mitre link : CVE-2026-47219

CVE.ORG link : CVE-2026-47219

JSON object : View

Products Affected

No product.

CWE

CWE-20

Improper Input Validation

CWE-248

Uncaught Exception

{"id": "CVE-2026-47219", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-47219", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-29T14:44:51.738881Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "delvedor", "product": "find-my-way", "versions": [{"status": "affected", "version": "< 9.7.0"}]}]}], "published": "2026-07-28T23:17:03.763", "references": [{"url": "https://github.com/delvedor/find-my-way/security/advisories/GHSA-c96f-x56v-gq3h", "source": "security-advisories@github.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-20"}, {"lang": "en", "value": "CWE-248"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "find-my-way es un router HTTP independiente del framework que internamente utiliza un \u00c1rbol Radix y soporta par\u00e1metros de ruta y comodines. Las versiones anteriores a la 9.7.0 son vulnerables a un DoS que puede ser activado remotamente en find-my-way cuando se utiliza con el servidor HTTP/2 de Node. La funci\u00f3n lookup() pasa req.method a find(), y find() indexa this.trees[method]. Dado que this.trees es un objeto normal, los valores de m\u00e9todo HTTP/2 como constructor, toString o __proto__ pueden resolver propiedades de objeto heredadas en lugar de devolver undefined. El c\u00f3digo entonces trata ese valor como un nodo de router y falla cuando alcanza currentNode.prefix.length. Este problema ha sido solucionado en la versi\u00f3n 9.0.7."}], "lastModified": "2026-10-23T23:10:00.157", "sourceIdentifier": "security-advisories@github.com"}