GHSA-wr66-vrwm-5g5x

    Dashboard / Vulnerabilities / GHSA-wr66-vrwm-5g5x

    GHSA-wr66-vrwm-5g5x

    Published: 28 Jan 2022Last Modified: 10 Sept 2026

    Summary: Denial of Service Vulnerability in next.js

    Details: ### Impact Vulnerable code could allow a bad actor to trigger a denial of service attack for anyone running a Next.js app at version >= 12.0.0, and using i18n functionality. - **Affected:** All of the following must be true to be affected by this CVE - Next.js versions above v12.0.0 - Using next start or a custom server - Using the built-in i18n support - **Not affected:** - Deployments on Vercel (vercel.com) are not affected along with similar environments where invalid requests are filtered before reaching Next.js. ### Patches A patch has been released, `[email protected]`, that mitigates this issue. We recommend all affected users upgrade as soon as possible. ### Workarounds We recommend upgrading whether you can reproduce or not although you can ensure `/${locale}/_next/` is blocked from reaching the Next.js instance until you upgrade. ### For more information If you have any questions or comments about this advisory: * Open an issue in [next](https://github.com/vercel/next.js) * Email us at [[email protected]](mailto:[email protected])

    Affected packages

    Package

    Name: next

    Purl: pkg:npm/next

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 12.0.0
    Fixed -12.0.9

    Affected versions

    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
    GHSA-wr66-vrwm-5g5x | CVE-DB