A pre-authentication denial of service vulnerability exists in React Server Components versions 19.0.0, 19.0.1 19.1.0, 19.1.1, 19.1.2, 19.2.0 and 19.2.1, including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints, which can cause an infinite loop that hangs the server process and may prevent future HTTP requests from being served.

Denial of Service vulnerability in React Server Components has been disclosed which could impact performance on a server.

The Next.js Framework on the remote host is affected by a denial of service vulnerability:

  - A pre-authentication denial of service vulnerability exists in React Server Components versions 19.0.0,   19.0.1 19.1.0, 19.1.1, 19.1.2, 19.2.0 and 19.2.1, including the following packages: react-server-dom-parcel,   react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads   from HTTP requests to Server Function endpoints, which can cause an infinite loop that hangs the server   process and may prevent future HTTP requests from being served. (CVE-2025-55184)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 7a1bd1ca-cf40-41e2-9c5f-143a0d4b17af advisory.

    https://nextjs.org/blog/security-update-2025-12-11 reports:
    A specifically crafted HTTP request can cause a Server Function to               return the compiled source code of other Server Functions in your               application. This could reveal business logic. Secrets could also be exposed               if they are defined directly in your code (rather than accessed via environment               variables at runtime) and referenced within a Server Function.
              Depending on your bundler configuration, these values may be inlined into the               compiled function output.
    A specifically crafted HTTP request can be sent to any App Router endpoint               that, when deserialized, can cause an infinite loop that hangs the server               process and prevents future HTTP requests from being served.

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Multiple Node.js React Server Components packages are affected by denial of service and source code exposure vulnerabilities. The following Node.js packages and versions are affected:

  - react-server-dom-webpack 19.0.0, 19.0.1, 19.1.0, 19.1.1, 19.1.2, 19.2.0, 19.2.1
  - react-server-dom-parcel 19.0.0, 19.0.1, 19.1.0, 19.1.1, 19.1.2, 19.2.0, 19.2.1
  - react-server-dom-turbopack 19.0.0, 19.0.1, 19.1.0, 19.1.1, 19.1.2, 19.2.0, 19.2.1

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
279414	Next.js Framework React Server Components DoS (CVE-2025-55184)	Nessus	Misc.	high
278623	FreeBSD : github-release-monitor -- multiple vulnerabilities (7a1bd1ca-cf40-41e2-9c5f-143a0d4b17af)	Nessus	FreeBSD Local Security Checks	medium
278531	Node.js React Server Components Denial of Service and Source Code Exposure (CVE-2025-55183, CVE-2025-55184)	Nessus	Misc.	high

Detections

Analytics

CVE-2025-55184

high

Tenable Plugins

high

medium

high