CVE-2026-47429

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.

PUBLISHED Reserved 2026-05-19 | Published 2026-07-14 | Updated 2026-07-14 | Assigner GitHub_M

Problem types

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Product status

References

github.com/...vitest/security/advisories/GHSA-5xrq-8626-4rwp

github.com/vitest-dev/vitest/pull/10445

github.com/vitest-dev/vitest/pull/9350

github.com/...ommit/20e00ef7808de6d330c5e2fda530f686e08f1c8d

github.com/...ommit/af88b1f5d82844a4761ea9a977156c98e2b14ca8

github.com/vitest-dev/vitest/releases/tag/v3.2.5

github.com/vitest-dev/vitest/releases/tag/v4.1.0

cve.org (CVE-2026-47429)

nvd.nist.gov (CVE-2026-47429)

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