CVE-2026-47429 — Vitest: Arbitrary file can be read and executed when Vitest UI server is listening
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__, al…
Published: 2026-07-14 · CVSS: 9.8 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7