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high advisory

Vite Dev Server `server.fs.deny` Bypass on Windows (CVE-2026-53571)

A high-severity vulnerability (CVE-2026-53571) in the Vite development server on Windows allows threat actors to bypass `server.fs.deny` restrictions, leading to information disclosure of sensitive files like `.env` or `tls.pem` via crafted HTTP requests utilizing NTFS Alternate Data Streams or 8.3 short names, impacting applications that expose the dev server to the network.

PoC Vite +4 information-disclosure bypass web-vulnerability windows development-server
2r 1t 1c 3i updated
high advisory

Vite Arbitrary File Read Vulnerability via WebSocket

Vite versions 6.0.0 to 8.0.4 are vulnerable to arbitrary file read, allowing attackers to bypass access controls and retrieve the contents of arbitrary files on the server via the WebSocket path when the dev server is exposed to the network.

Vite file-read vulnerability websocket
2r 1t