Uncaught Exception Affecting next package, versions >=12.2.3 <12.2.4



    Attack Complexity High
    Availability High

    Threat Intelligence

    EPSS 0.08% (32nd percentile)
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5.3 medium

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  • Snyk ID SNYK-JS-NEXT-3011410
  • published 31 Aug 2022
  • disclosed 30 Aug 2022
  • credit Unknown

How to fix?

Upgrade next to version 12.2.4 or higher.


next is a react framework.

Affected versions of this package are vulnerable to Uncaught Exception due to specific requests that can cause an unhandledRejection in the server which can crash the process in specific Node.js versions with strict unhandledRejection handling.

Note: Applications are only vulnerable if they:

  1. are using a Node.js version that is above v15.0.0

  2. are using next start or a custom server

Users are not affected if they are using deployments on Vercel along with similar environments where next-server isn't being shared across requests.