CVE-2026-39363
HIGH SEVERITYVulnerability Description
Vite is a frontend tooling framework for JavaScript. From 6.0.0 to before 6.4.2, 7.3.2, and 8.0.5, if it is possible to connect to the Vite dev server’s WebSocket without an Origin header, an attacker can invoke fetchModule via the custom WebSocket event vite:invoke and combine file://... with ?raw (or ?inline) to retrieve the contents of arbitrary files on the server as a JavaScript string (e.g., export default "..."). The access control enforced in the HTTP request path (such as server.fs.allow) is not applied to this WebSocket-based execution path. This vulnerability is fixed in 6.4.2, 7.3.2, and 8.0.5.
Vulnerability Details
Published Date
Last Modified
CWE ID
CWE-200
Source
GitHub
Vendor
npm
Product
vite
External References
- https://github.com/vitejs/vite/security/advisories/GHSA-p9ff-h696-f583
- https://github.com/vitejs/vite/pull/22159
- https://github.com/vitejs/vite/commit/f02d9fde0b195afe3ea2944414186962fbbe41e0
- https://github.com/vitejs/vite/releases/tag/v6.4.2
- https://github.com/vitejs/vite/releases/tag/v7.3.2
- https://github.com/vitejs/vite/releases/tag/v8.0.5
- https://github.com/advisories/GHSA-p9ff-h696-f583
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