CVE-2026-112948 PUBLISHED

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

Assigner: GitHub_M
Reserved: 19.10.2026 Published: 20.10.2026 Updated: 20.10.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS Score: 6.5

Product Status

Vendor vitest-dev
Product vitest
Versions
  • Version >= 5.0.0-beta.6, < 5.0.5 is affected
Vendor @vitest
Product browser
Versions
  • Version >= 5.0.0-beta.6, < 5.0.5 is affected
Vendor @vitest
Product ui
Versions
  • Version >= 5.0.0-beta.6, < 5.0.5 is affected
Vendor vitejs
Product vite-plus
Versions
  • Version >= 1.0.0-rc.0, < 1.3.0 is affected

References

Problem Types

  • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE
  • CWE-552: Files or Directories Accessible to External Parties CWE