GHSA-c96f-x56v-gq3h

Source

https://github.com/advisories/GHSA-c96f-x56v-gq3h

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-c96f-x56v-gq3h/GHSA-c96f-x56v-gq3h.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-c96f-x56v-gq3h

Aliases

CVE-2026-47219

Downstream

MINI-9p3p-m3qv-j7v3

Published

2026-07-23T19:33:15Z

Modified

2026-07-23T19:56:40Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

find-my-way: DDoS with HTTP2

Details

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.

Database specific

{
    "cwe_ids":  [
        "CWE-1321"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-07-23T19:33:15Z",
    "nvd_published_at":  null,
    "severity":  "HIGH"
}

References

Affected packages

npm / find-my-way

Package

Name: find-my-way; View open source insights on deps.dev
Purl: pkg:npm/find-my-way

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

9.7.0

Database specific

last_known_affected_version_range

"<= 9.6.0"

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-c96f-x56v-gq3h/GHSA-c96f-x56v-gq3h.json"