Vulnerability · Published Apr 3, 2025 · Assigned by GitHub_M
CVE-2025-31486Vite allows server.fs.deny to be bypassed with .svg or relative paths
Medium 5.3
In plain English
A medium-severity information exposure in vite from vitejs. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 40.5% (higher than 99% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei, public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | vite | 6.2.5 | GHSA-xcj6-pq6g-qj4x |
| npm | vite | 6.1.4 | GHSA-xcj6-pq6g-qj4x |
| npm | vite | 6.0.14 | GHSA-xcj6-pq6g-qj4x |
| npm | vite | 5.4.17 | GHSA-xcj6-pq6g-qj4x |
| npm | vite | 4.5.12 | GHSA-xcj6-pq6g-qj4x |
Affected products (as reported)
Weakness: CWE-200, CWE-284 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
References
- https://github.com/vitejs/vite/security/advisories/GHSA-xcj6-pq6g-qj4x x_refsource_CONFIRM
- https://github.com/vitejs/vite/commit/62d7e81ee189d65899bb65f3263ddbd85247b647 x_refsource_MISC
- https://github.com/vitejs/vite/blob/037f801075ec35bb6e52145d659f71a23813c48f/packages/vite/src/node/plugins/asset.ts#L285-L290 x_refsource_MISC