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[ CVE-2026-112948 · Published 20 Oct 2026 ]

Vitest: Servers misapply `server.fs.deny`, serving `.env`, private keys, `.git`, and the API token file

CVSS 6.5 EPSS <1%Fix available

[ Description ]Official description

Vitest is a testing framework powered by Vite. From 5.0.0-beta.6 until 5.0.5, Vitest dev servers can misapply server.fs.deny because project servers replace Vite's defaults and the root server adds .vitest-secret-token after Vite compiles its matcher. An attacker who can reach an affected UI, Browser Mode, or API server can read denied project files or the fallback API token at node_modules/.vitest/.vitest-secret-token, and Browser Mode with test.projects can expose JavaScript-compatible .env values through a malicious website. This issue is fixed in version 5.0.5.

[ Fixes ]Fixes and patches

  • @vitest/ui 5.0.5Fixed version · GitHub Advisories · npm package @vitest/ui: upgrade to 5.0.5 or later (affected >= 5.0.0-beta.6, < 5.0.5)
  • @vitest/browser 5.0.5Fixed version · GitHub Advisories · npm package @vitest/browser: upgrade to 5.0.5 or later (affected >= 5.0.0-beta.6, < 5.0.5)
  • vite-plus 1.3.0Fixed version · GitHub Advisories · npm package vite-plus: upgrade to 1.3.0 or later (affected >= 1.0.0-rc.0, < 1.3.0)

[ Packages ]Affected open-source packages

[ References ]References