BREW-VITE-CVE-2025-46565 (GHSA-859W-5945-R5V3)

Vulnerability from osv_homebrew – Published: 2026-08-13 17:48 – Updated: 2026-11-11 11:35 – Source website
VLAI
Summary
Vite's server.fs.deny bypassed with /. for files under project root
Details

Summary

The contents of files in the project root that are denied by a file matching pattern 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. Only files that are under project root and are denied by a file matching pattern can be bypassed.

  • Examples of file matching patterns: .env, .env.*, *.{crt,pem}, **/.env
  • Examples of other patterns: **/.git/**, .git/**, .git/**/*

Details

server.fs.deny can contain patterns matching against files (by default it includes .env, .env.*, *.{crt,pem} as such patterns). These patterns were able to bypass for files under root by using a combination of slash and dot (/.).

PoC

npm create vite@latest
cd vite-project/
cat "secret" > .env
npm install
npm run dev
curl --request-target /.env/. http://localhost:5173

image image

Severity
6.0 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "upstream_fixed_in": "6.3.4"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "vite",
        "purl": "pkg:brew/vite"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.5.1"
            },
            {
              "fixed": "6.3.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "registry",
    "upstream_evidence": [
      {
        "ecosystem": "npm",
        "key": "pkg:npm/vite@8.3.7",
        "name": "vite",
        "strategy": "registry",
        "subject_version": "8.3.7"
      }
    ]
  },
  "details": "### Summary\nThe contents of files in [the project `root`](https://vite.dev/config/shared-options.html#root) that are denied by a file matching pattern can be returned to the browser.\n\n### Impact\n\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.\nOnly files that are under [project `root`](https://vite.dev/config/shared-options.html#root) and are denied by a file matching pattern can be bypassed.\n\n- Examples of file matching patterns: `.env`, `.env.*`, `*.{crt,pem}`, `**/.env`\n- Examples of other patterns: `**/.git/**`, `.git/**`, `.git/**/*`\n\n### Details\n[`server.fs.deny`](https://vite.dev/config/server-options.html#server-fs-deny) can contain patterns matching against files (by default it includes `.env`, `.env.*`, `*.{crt,pem}` as such patterns).\nThese patterns were able to bypass for files under `root` by using a combination of slash and dot (`/.`).\n\n### PoC\n```\nnpm create vite@latest\ncd vite-project/\ncat \"secret\" \u003e .env\nnpm install\nnpm run dev\ncurl --request-target /.env/. http://localhost:5173\n```\n\n![image](https://github.com/user-attachments/assets/822f4416-aa42-461f-8c95-a88d155e674b)\n![image](https://github.com/user-attachments/assets/42902144-863a-4afb-ac5b-fc16effa37cc)",
  "id": "BREW-vite-CVE-2025-46565",
  "modified": "2026-11-11T11:35:12Z",
  "published": "2026-08-13T17:48:54Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/vitejs/vite/security/advisories/GHSA-859w-5945-r5v3"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-46565"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vitejs/vite/commit/c22c43de612eebb6c182dd67850c24e4fab8cacb"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/vitejs/vite"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Vite\u0027s server.fs.deny bypassed with /. for files under project root",
  "upstream": [
    "GHSA-859w-5945-r5v3",
    "CVE-2025-46565"
  ]
}



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