@hono/node-server can't handle "double dots" in URL

{
  "id": "e59f5b72c3b0bd7b44f2a047b0a8673679877fcd27c26357a5f535025e4f5ddf",
  "url": "https://osv.dev/vulnerability/CVE-2024-23340",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "@hono/node-server can't handle \"double dots\" in URL",
    "summary": "@hono/node-server is an adapter that allows users to run Hono applications on Node.js. Since v1.3.0, @hono/node-server has used its own Request object with `url` behavior that is unexpected. In the standard API, if the URL contains `..`, here called \"double dots\", the URL string returned by Request will be in the resolved path. However, the `url` in @hono/node-server's Request as does not resolve double dots, so `http://localhost/static/.. /foo.txt` is returned. This causes vulnerabilities when using `serveStatic`. Modern web browsers and a latest `curl` command resolve double dots on the client side, so this issue doesn't affect those using either of those tools. However, problems may occur if accessed by a client that does not resolve them. Version 1.4.1 includes the change to fix this issue. As a workaround, don't use `serveStatic`.",
    "evidence": "osv:CVE-2024-23340",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2024-23340",
      "aliases": [
        "CVE-2024-23340",
        "GHSA-rjq5-w47x-x359"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/honojs/node-server",
              "type": "GIT",
              "events": [
                {
                  "introduced": "096e27d07a381eea47bbafc1278950ea0175713a"
                },
                {
                  "fixed": "69dd54a0d547c7bccad7d4d365ef033740e3f365"
                },
                {
                  "fixed": "dd9b9a9b23e3896403c90a740e7f1f0892feb402"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:hono:node-server:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "1.3.0"
                      },
                      {
                        "fixed": "1.4.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "dd9b9a9b23e3896403c90a740e7f1f0892feb402"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.4.0",
            "v1.3.5",
            "v1.3.4",
            "v1.3.3",
            "v1.3.2",
            "v1.3.1",
            "v1.3.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-23340.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.142087947Z",
      "provider": "osv",
      "references": [
        "https://github.com/honojs/node-server/blob/8cea466fd05e6d2e99c28011fc0e2c2d3f3397c9/src/request.ts#L43-L45",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/23xxx/CVE-2024-23340.json",
        "https://github.com/honojs/node-server/security/advisories/GHSA-rjq5-w47x-x359",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-23340",
        "https://github.com/honojs/node-server/commit/dd9b9a9b23e3896403c90a740e7f1f0892feb402"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-22"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/23xxx/CVE-2024-23340.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-23340",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 491868,
  "published_at": "2024-01-22T23:00:34.51+00:00"
}