Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/vitejs/vite/blob/037f801075ec35bb6e52145d659f71a23813c48f/pac
- https://github.com/vitejs/vite/commit/62d7e81ee189d65899bb65f3263ddbd85247b647
- https://github.com/vitejs/vite/security/advisories/GHSA-xcj6-pq6g-qj4x
- https://github.com/vitejs/vite/security/advisories/GHSA-xcj6-pq6g-qj4x
FAQ
What is CVE-2025-31486?
CVE-2025-31486 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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....
How severe is CVE-2025-31486?
CVE-2025-31486 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-31486?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.