GHSA-c96f-x56v-gq3h

find-my-way: DDoS with HTTP2

At a glance

Published
Updated
CVE
CVE-2026-47219
CVSS_V3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

### Impact Remotely triggerable DoS in find-my-way when it is used with Node's HTTP/2 server. The short version is that `lookup()` 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`. ### Patches Upgrade to v9.7.0. ### Workarounds Do not use find-my-way with HTTP/2 servers, or validate that the http method is valid beforehand.

Affected packages

PackageVersions
npm · find-my-wayintroduced 0, fixed 9.7.0

References

Sources

SourceLicence
OSV.devCC-BY 4.0 — GitHub Advisory Database