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CVE PROGRAM SOURCE RECORD9.8 Critical

CVE-2026-47429

Vitest: Arbitrary file can be read and executed when Vitest UI server is listening

Description

Vitest is a testing framework powered by Vite. Prior to 3.2.5 and 4.1.0, the Vitest UI/API server on Windows used isFileServingAllowed incorrectly for /__vitest_attachment__, allowing \\?\\..\\ path traversal to read files outside the project; exposed API write and rerun features such as saveTestFile and rerun could also allow arbitrary script execution. This issue is fixed in versions 3.2.5 and 4.1.0.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

vitest-dev vitest

  • < 3.2.5affected
  • >= 4.0.0, < 4.1.0affected

References