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    CVE-2026-53663

    React Router is a router for React. From 7.12.0 until 7.15.1, certain CSRF checks in React Router v7 Framework Mode were insufficient and run on POST requests, but were bypassed on PUT/PATCH/DELETE requests. This is a low severity vulnerability because modern browser protections (CORS preflight, SameSite cookies) already block the cross-origin attack vectors that this missing CSRF check would otherwise gate. This vulnerability is fixed in 7.15.1.

    Published:Jun 22, 2026
    Last Modified:Jun 22, 2026
    EPS:Jun 22, 2026
    EPSS Score:
    CVSS Score:3.1

    Affected Products

    Vendor
    Remix-run
    Product
    React-router
    Vendor
    Remix-run
    Product
    Server-runtime

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-53666 (CVSS 6.1) — React Router is a router for React. In versions 6.4.0 through 7.17.0, if application code was written in a way…
    CVE-2026-42342 (CVSS 7.5) — React Router is a router for React. In versions 7.0.0 through 7.14.x of react-router and versions 2.10.0 throu…
    CVE-2026-42211 (CVSS 8.1) — React Router is a router for React. In versions 7.0.0 through 7.14.1, when using Framework Mode, a combination…
    CVE-2026-40181 (CVSS 6.6) — React Router is a router for React. In versions 7.0.0 through 7.14.0 and 6.7.0 through 6.30.3, certain URLs pa…
    CVE-2026-34077 (CVSS 7.5) — React Router is a router for React. In versions 7.7.0 through 7.13.1, when using React Router's unstable React…
    CVE-2026-33245 (CVSS 8) — React Router is a router for React. In versions 7.7.0 through 7.13.1, when using React Router's unstable React…

    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