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    CVE-2026-47429

    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:Jul 14, 2026
    Last Modified:Jul 21, 2026
    EPS:Jul 14, 2026
    EPSS Score:0.01024
    CVSS Score:9.8

    Affected Products

    Vendor
    Redhat
    Product
    Hummingbird
    Vendor
    Vitest.dev
    Product
    Vitest

    Exploits

    https://github.com/vitest-dev/vitest/pull/10445https://github.com/vitest-dev/vitest/pull/9350https://github.com/vitest-dev/vitest/security/advisories/GHSA-5xrq-8626-4rwphttps://github.com/vitest-dev/vitest/security/advisories/GHSA-5xrq-8626-4rwphttps://github.com/az9713/cve-lite-on-pi

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High