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CVE-2026-94482

CVE-2026-94482 · Next.js: Denial of Service in App Router using Server Actions

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Next.js is a React framework for building full-stack web applications. From 13.0.0 until 15.5.28 and 16.4.1, crafted requests targeting App Router applications with at least one Server Action can cause excessive CPU consumption and block processing of further requests in the same process. Applications using the Pages Router and App Router applications without Server Actions are not affected. This issue is fixed in versions 15.5.28 and 16.4.1.

CVSS 8.2 · High · EPSS 0.4% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • next.js

    Versions
    • >= 13.0.0, < 15.5.28: Affected
    • >= 16.0.0, < 16.4.1: Affected

    No fix published

  • next npm

    Affected ranges
    • SEMVER: ≥ 13.0.0, < 15.5.28

    Update to 15.5.28

  • next npm

    Affected ranges
    • SEMVER: ≥ 16.0.0, < 16.4.1

    Update to 16.4.1

Original sources

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