CVE-2026-47429
CRITICAL
NVD
CVSS Score
9.8
Severity
CRITICAL
Published
Jul 14, 2026
Vendor
unknown
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.
References
- https://github.com/vitest-dev/vitest/commit/20e00ef7808de6d330c5e2fda530f686e08f1c8d
- https://github.com/vitest-dev/vitest/commit/af88b1f5d82844a4761ea9a977156c98e2b14ca8
- https://github.com/vitest-dev/vitest/pull/10445
- https://github.com/vitest-dev/vitest/pull/9350
- https://github.com/vitest-dev/vitest/releases/tag/v3.2.5