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CVE-2026-47219— find-my-way is Vulnerable to DDoS with HTTP2

Quick assessment

Affected
delvedor find-my-way
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Delvedor find-my-way是Delvedor个人开发者开源的一个提供路由功能的 NPM 代码库。 Delvedor find-my-way 9.7.0之前版本存在安全漏洞，该漏洞源于lookup()函数中HTTP/2方法值解析为继承对象属性，可能导致远程触发拒绝服务。

CVSS 7.5 · High EPSS 0.46% · P38

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
delvedor find-my-way < 9.7.0 affected
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I. Basic Information for CVE-2026-47219

Vulnerability Information
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Vulnerability Title
find-my-way is Vulnerable to DDoS with HTTP2
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Delvedor find-my-way 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Delvedor find-my-way是Delvedor个人开发者开源的一个提供路由功能的 NPM 代码库。 Delvedor find-my-way 9.7.0之前版本存在安全漏洞，该漏洞源于lookup()函数中HTTP/2方法值解析为继承对象属性，可能导致远程触发拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
delvedor find-my-way < 9.7.0 -

II. Public POCs for CVE-2026-47219

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 8480 chars
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III. Intelligence Information for CVE-2026-47219

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Vendor Advisories for CVE-2026-47219 (1)

IV. Related Vulnerabilities

Same product: find-my-way
Same vendor: delvedor
Same weakness: CWE-20

V. Comments for CVE-2026-47219

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