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17 March 2026

Vulnerabilities first published on this day (UTC), newest first.

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  • Medium 5.3
    CVE-2026-27978 Public exploit

    Next.js: null origin can bypass Server Actions CSRF checks

    Next.js is a React framework for building full-stack web applications. Starting in version 16.0.1 and prior to version 16.1.7, `origin: null` was treated as a "missing" origin during Server Action CSRF validation. As a result, requests from opaque contexts (s…

  • Medium 5.4
    CVE-2026-20643 Public exploit

    A cross-origin issue in the Navigation API was addressed with improved input validation. This issue is fixed in Backgro…