Описание
Vite allows server.fs.deny to be bypassed with .svg or relative paths
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
.svg
Requests ending with .svg are loaded at this line.
https://github.com/vitejs/vite/blob/037f801075ec35bb6e52145d659f71a23813c48f/packages/vite/src/node/plugins/asset.ts#L285-L290
By adding ?.svg with ?.wasm?init or with sec-fetch-dest: script header, the restriction was able to bypass.
This bypass is only possible if the file is smaller than build.assetsInlineLimit (default: 4kB) and when using Vite 6.0+.
relative paths
The check was applied before the id normalization. This allowed requests to bypass with relative paths (e.g. ../../).
PoC
send request to read etc/passwd
Ссылки
- https://github.com/vitejs/vite/security/advisories/GHSA-xcj6-pq6g-qj4x
- https://nvd.nist.gov/vuln/detail/CVE-2025-31486
- https://github.com/vitejs/vite/commit/62d7e81ee189d65899bb65f3263ddbd85247b647
- https://github.com/vitejs/vite/blob/037f801075ec35bb6e52145d659f71a23813c48f/packages/vite/src/node/plugins/asset.ts#L285-L290
Пакеты
vite
>= 6.2.0, < 6.2.5
6.2.5
vite
>= 6.1.0, < 6.1.4
6.1.4
vite
>= 6.0.0, < 6.0.14
6.0.14
vite
>= 5.0.0, < 5.4.17
5.4.17
vite
< 4.5.12
4.5.12
Связанные уязвимости
Vite is a frontend tooling framework for javascript. The contents of arbitrary files can be returned to the browser. By adding ?.svg with ?.wasm?init or with sec-fetch-dest: script header, the server.fs.deny restriction was able to bypass. This bypass is only possible if the file is smaller than build.assetsInlineLimit (default: 4kB) and when using Vite 6.0+. Only apps explicitly exposing the Vite dev server to the network (using --host or server.host config option) are affected. This vulnerability is fixed in 4.5.12, 5.4.17, 6.0.14, 6.1.4, and 6.2.5.
Vite is a frontend tooling framework for javascript. The contents of arbitrary files can be returned to the browser. By adding ?.svg with ?.wasm?init or with sec-fetch-dest: script header, the server.fs.deny restriction was able to bypass. This bypass is only possible if the file is smaller than build.assetsInlineLimit (default: 4kB) and when using Vite 6.0+. Only apps explicitly exposing the Vite dev server to the network (using --host or server.host config option) are affected. This vulnerability is fixed in 4.5.12, 5.4.17, 6.0.14, 6.1.4, and 6.2.5.
Vite is a frontend tooling framework for javascript. The contents of a ...