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CVE-2025-55184: Denial of Service Vulnerability in React Server Components

December 11, 2025

There is a denial of service vulnerability in React Server Components.

React recommends updating immediately.

The vulnerability exists in versions 19.0.0, 19.0.1 19.1.0, 19.1.1, 19.1.2, 19.2.0 and 19.2.1 of:

  • react-server-dom-webpack
  • react-server-dom-parcel
  • react-server-dom-turbopack

These issues are present in the patches published last week.

References

  • github.com/advisories/GHSA-2m3v-v2m8-q956
  • github.com/facebook/react
  • github.com/facebook/react/security/advisories/GHSA-2m3v-v2m8-q956
  • nvd.nist.gov/vuln/detail/CVE-2025-55184
  • react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components
  • www.facebook.com/security/advisories/cve-2025-55184

Code Behaviors & Features

Detect and mitigate CVE-2025-55184 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →

Affected versions

All versions starting from 19.0.0 before 19.0.2, all versions starting from 19.1.0 before 19.1.3, all versions starting from 19.2.0 before 19.2.2

Fixed versions

  • 19.0.2
  • 19.1.3
  • 19.2.2

Solution

Upgrade to versions 19.0.2, 19.1.3, 19.2.2 or above.

Impact 7.5 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Learn more about CVSS

Weakness

  • CWE-400: Uncontrolled Resource Consumption
  • CWE-502: Deserialization of Untrusted Data

Source file

npm/react-server-dom-parcel/CVE-2025-55184.yml

Spotted a mistake? Edit the file on GitLab.

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