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
| Package | Versions |
|---|---|
| npm · find-my-way | introduced 0, fixed 9.7.0 |
References
- https://github.com/delvedor/find-my-way/security/advisories/GHSA-c96f-x56v-gq3h WEB
- https://github.com/delvedor/find-my-way/pull/434 WEB
- https://github.com/delvedor/find-my-way/commit/cfe3fd6168b5ac1594c0820fb83fce251a533fc1 WEB
- https://github.com/delvedor/find-my-way PACKAGE
- https://github.com/delvedor/find-my-way/releases/tag/v9.7.0 WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |