CVE-2026-47219
find-my-way is a framework-independent HTTP router that internally uses a Radix Tree and supports route parameters and wildcards.
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | find-my-way | <= 9.6.0 | 9.7.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-c96f-x56v-gq3h
- https://github.com/delvedor/find-my-way/security/advisories/GHSA-c96f-x56v-gq3h
- https://github.com/delvedor/find-my-way/pull/434
- https://github.com/delvedor/find-my-way/commit/cfe3fd6168b5ac1594c0820fb83fce251a533fc1
- https://github.com/delvedor/find-my-way/releases/tag/v9.7.0