# Vite Plugin React denial of service in React Server Components

Source: https://junglewise.ai/threats/vite-plugin-react-denial-of-service-in-react-server-components-8f1b9330  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-12-12. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

Severity: low · CVSS 3.1 · Published 2025-12-12

Vite Plugin React is a build tool plugin for React applications. A vulnerability in its React Server Components support can be exploited by remote attackers to cause a denial of service, making the application unavailable to legitimate users without requiring authentication or user interaction.

Technologies: [@vitejs/plugin-rsc (npm)](https://junglewise.ai/threats/technologies/vitejs-plugin-rsc). Vendors: [npm](https://junglewise.ai/threats/vendors/npm), [Vite](https://junglewise.ai/threats/vendors/vite).

## Quick answers

**Is This vulnerability exploited in the wild?** No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.

**How severe is This vulnerability?** Low severity, with a CVSS score of 3.1, published 12 December 2025.

**Which products and versions are affected?** @vitejs/plugin-rsc (npm) SEMVER:introduced=0,fixed=0.5.7; Vite Plugin React <= 0.5.6.

**Is there a fix for This vulnerability?** Yes. @vitejs/plugin-rsc (npm): upgrade to 0.5.7 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is This vulnerability attacked?** It is attacked over the network, in a software library.

**Am I affected?** Check whether you run @vitejs/plugin-rsc (npm) or Vite Plugin React at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- @vitejs/plugin-rsc (npm): upgrade to 0.5.7 or later

  ```sh
  npm install @vitejs/plugin-rsc@0.5.7
  ```


## Technical details

The vulnerability exists in @vitejs/plugin-rsc, which vendors react-server-dom-webpack prior to version 19.2.3. This is a denial of service flaw affecting React Server Components processing. The attack is network-accessible without requiring authentication or user interaction, and an attacker can craft malicious requests that exhaust server resources and crash the application. The fix requires upgrading to @vitejs/plugin-rsc version 0.5.7 or later, which includes the patched react-server-dom-webpack dependency.

## Affected products

- Vite Plugin React <= 0.5.6

## Timeline

- 2025-12-12: disclosed

## References

- [https://github.com/vitejs/vite-plugin-react/security/advisories/GHSA-cpqf-f22c-r95x](https://github.com/vitejs/vite-plugin-react/security/advisories/GHSA-cpqf-f22c-r95x)
- [https://github.com/vitejs/vite-plugin-react](https://github.com/vitejs/vite-plugin-react)

## Related threats

- [Vitejs plugin-rsc denial of service in React Server Components](https://junglewise.ai/threats/vitejs-plugin-rsc-denial-of-service-in-react-server-components-a8d7aac1)
- [Vitejs plugin-rsc Denial of Service with React Server Components](https://junglewise.ai/threats/vitejs-plugin-rsc-denial-of-service-with-react-server-components-d98230f7)
- [Vite @vitejs/plugin-rsc arbitrary file read in /__vite_rsc_findSourceMapURL](https://junglewise.ai/threats/cve-2025-68155-vite-vitejs-plugin-rsc-arbitrary-file-read-in-vite-rsc)
- [Vite Plugin React source code exposure in Server Components](https://junglewise.ai/threats/vite-plugin-react-source-code-exposure-in-server-components-88776524)
- [Vitejs plugin-rsc code injection in development server](https://junglewise.ai/threats/cve-2025-67489-vitejs-plugin-rsc-code-injection-in-development-server)