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Vulnerability record · CVE-2025-31486 · published 3 April 2025

CVE-2025-31486: Information exposure vulnerability

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.

5.3 CVSS 3.1 Medium EPSS 40% · top 1.4% CWE-200 · Information exposureCWE-284 · Improper access control Deferred
5.3CVSS 3.1 base score
40%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

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:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

References

LinkTags
https://github.com/vitejs/vite/blob/037f801075ec35bb6e52145d659f71a23813c48f/packages/vite/src/node/plugins/asset.ts#L28
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

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Source: NIST National Vulnerability Database (record CVE-2025-31486), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.