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CVE-2026-23864

CVE-2026-23864

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

Multiple denial of service vulnerabilities exist in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack, react-server-dom-webpack. The vulnerabilities are triggered by sending specially crafted HTTP requests to Server Function endpoints, and could lead to server crashes, out-of-memory exceptions or excessive CPU usage; depending on the vulnerable code path being exercised, the application configuration and application code. Strongly consider upgrading to the latest package versions to reduce risk and prevent availability issues in applications using React Server Components.

CVSS 7.5 · High · EPSS 2.6% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • react-server-dom-webpack

    Versions
    • ≥ 19.0.0, < 19.0.4: Affected (semver)
    • ≥ 19.1.0, < 19.1.5: Affected (semver)
    • ≥ 19.2.0, < 19.2.4: Affected (semver)

    Update to 19.0.4; Update to 19.1.5; Update to 19.2.4

  • react-server-dom-turbopack

    Versions
    • ≥ 19.0.0, < 19.0.4: Affected (semver)
    • ≥ 19.1.0, < 19.1.5: Affected (semver)
    • ≥ 19.2.0, < 19.2.4: Affected (semver)

    Update to 19.0.4; Update to 19.1.5; Update to 19.2.4

  • react-server-dom-parcel

    Versions
    • ≥ 19.0.0, < 19.0.4: Affected (semver)
    • ≥ 19.1.0, < 19.1.5: Affected (semver)
    • ≥ 19.2.0, < 19.2.4: Affected (semver)

    Update to 19.0.4; Update to 19.1.5; Update to 19.2.4

  • react-server-dom-parcel npm

    Affected ranges
    • SEMVER: ≥ 19.0.0, < 19.0.4

    Update to 19.0.4

  • react-server-dom-turbopack npm

    Affected ranges
    • SEMVER: ≥ 19.1.0-canary-7130d0c6-20241212, < 19.1.5

    Update to 19.1.5

  • react-server-dom-webpack npm

    Affected ranges
    • SEMVER: ≥ 19.2.0-canary-63779030-20250328, < 19.2.4

    Update to 19.2.4

  • react-server-dom-turbopack npm

    Affected ranges
    • SEMVER: ≥ 19.0.0, < 19.0.4

    Update to 19.0.4

  • react-server-dom-parcel npm

    Affected ranges
    • SEMVER: ≥ 19.1.0-canary-7130d0c6-20241212, < 19.1.5

    Update to 19.1.5

  • react-server-dom-parcel npm

    Affected ranges
    • SEMVER: ≥ 19.2.0-canary-63779030-20250328, < 19.2.4

    Update to 19.2.4

  • react-server-dom-webpack npm

    Affected ranges
    • SEMVER: ≥ 19.1.0-canary-7130d0c6-20241212, < 19.1.5

    Update to 19.1.5

  • react-server-dom-webpack npm

    Affected ranges
    • SEMVER: ≥ 19.0.0, < 19.0.4

    Update to 19.0.4

  • react-server-dom-turbopack npm

    Affected ranges
    • SEMVER: ≥ 19.2.0-canary-63779030-20250328, < 19.2.4

    Update to 19.2.4

Original sources

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