Packages / react-server-dom-webpack / Security

CriticalVulnerabilityGHSA-fv66-9v8q-g76rCVE-2025-55182Published 3 Dec 2025

React Server Components are Vulnerable to RCE

Affected releases · react-server-dom-webpack

  • 19.x19.0.0 – 19.2.0Fixed in 19.2.1

On 19.x, the newest line:

npm install react-server-dom-webpack@19.2.1

  1. Not affected

    0.0.1

    1 release

  2. Affected

    19.0.0

    1 release

  3. Fixed

    19.0.1 – 19.0.9

    9 releases

  4. Affected

    19.1.0 – 19.1.1

    2 releases

  5. Fixed

    19.1.2 – 19.1.10

    9 releases

  6. Affected

    19.2.0

    1 release

  7. Fixed

    19.2.1 – 19.3.1

    11 releases, latest

34 stable releases of react-server-dom-webpack, oldest to newest.

Is your project affected?

Paste your package.json, or type the range you declare for react-server-dom-webpack. It is read in your browser and sent nowhere.

What happens

Impact

There is an unauthenticated remote code execution vulnerability in React Server Components.

We recommend upgrading immediately.

The vulnerability is present in versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 of:

Patches

A fix was introduced in versions 19.0.1, 19.1.2, and 19.2.1. If you are using any of the above packages please upgrade to any of the fixed versions immediately.

If your app’s React code does not use a server, your app is not affected by this vulnerability. If your app does not use a framework, bundler, or bundler plugin that supports React Server Components, your app is not affected by this vulnerability.

References

See the blog post for more information and upgrade instructions.