Vulnerability-Lookup

GHSA-C96F-X56V-GQ3H

Vulnerability from github – Published: 2026-07-23 19:33 – Updated: 2026-07-23 19:33

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.

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 9.6.0"
      },
      "package": {
        "ecosystem": "npm",
        "name": "find-my-way"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.7.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-47219"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1321"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-23T19:33:15Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Impact\nRemotely triggerable DoS in find-my-way when it is used with Node\u0027s HTTP/2 server.\n\nThe 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`.\n\n### Patches\n\nUpgrade to v9.7.0.\n\n### Workarounds\n\nDo not use find-my-way with HTTP/2 servers, or validate that the http method is valid beforehand.",
  "id": "GHSA-c96f-x56v-gq3h",
  "modified": "2026-07-23T19:33:15Z",
  "published": "2026-07-23T19:33:15Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/delvedor/find-my-way/security/advisories/GHSA-c96f-x56v-gq3h"
    },
    {
      "type": "WEB",
      "url": "https://github.com/delvedor/find-my-way/pull/434"
    },
    {
      "type": "WEB",
      "url": "https://github.com/delvedor/find-my-way/commit/cfe3fd6168b5ac1594c0820fb83fce251a533fc1"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/delvedor/find-my-way"
    },
    {
      "type": "WEB",
      "url": "https://github.com/delvedor/find-my-way/releases/tag/v9.7.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "find-my-way: DDoS with HTTP2"
}

CVE-2026-47219 (GCVE-0-2026-47219)

Vulnerability from cvelistv5 – Published: 2026-07-28 22:14 – Updated: 2026-07-29 15:24

Title

find-my-way is Vulnerable to DDoS with HTTP2

Summary

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.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-29 14:44 UTC

CWE

CWE-20 - Improper Input Validation
CWE-248 - Uncaught Exception

Assigner

GitHub_M mitre root

References

1 reference

URL	Tags
https://github.com/delvedor/find-my-way/security/…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
delvedor	find-my-way	Affected: < 9.7.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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        "metrics": [
          {
            "other": {
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                "id": "CVE-2026-47219",
                "options": [
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                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-29T14:44:51.738881Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
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        ],
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
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      }
    ],
    "cna": {
      "affected": [
        {
          "product": "find-my-way",
          "vendor": "delvedor",
          "versions": [
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              "status": "affected",
              "version": "\u003c 9.7.0"
            }
          ]
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          "value": "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\u0027s 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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
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      "source": {
        "advisory": "GHSA-c96f-x56v-gq3h",
        "discovery": "UNKNOWN"
      },
      "title": "find-my-way is Vulnerable to DDoS with HTTP2"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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    "datePublished": "2026-07-28T22:14:31.279Z",
    "dateReserved": "2026-05-18T22:25:21.258Z",
    "dateUpdated": "2026-07-29T15:24:01.203Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
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Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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