React Server Components have a Denial of Service Vulnerability
Impact
A denial of service vulnerability exists in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack, react-server-dom-webpack versions 19.0.0, 19.1.0 and 19.2.0. The vulnerability is triggered by sending specially crafted HTTP requests to Server Function endpoints.
The payload of the HTTP request causes excessive CPU usage for up to a minute ending in a thrown error that is catchable.
We recommend updating immediately.
The vulnerability exists in versions 19.0.0 through 19.0.4, 19.1.0 through 19.1.5, and 19.2.0 through 19.2.4 of:
react-server-dom-webpack react-server-dom-parcel react-server-dom-turbopack
Patches
Fixes were back ported to versions 19.0.5, 19.1.6, and 19.2.5.
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.
Software afectado
Haz clic en una tecnología para ver todas sus vulnerabilidades.
| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Paquete de npm | react-server-dom-parcel | >= 19.0.0, < 19.0.5, >= 19.1.0, < 19.1.6, >= 19.2.0, < 19.2.5 | 19.0.5, 19.1.6, 19.2.5 |
| Paquete de npm | react-server-dom-turbopack | >= 19.0.0, < 19.0.5, >= 19.1.0, < 19.1.6, >= 19.2.0, < 19.2.5 | 19.0.5, 19.1.6, 19.2.5 |
| Paquete de npm | react-server-dom-webpack | >= 19.0.0, < 19.0.5, >= 19.1.0, < 19.1.6, >= 19.2.0, < 19.2.5 | 19.0.5, 19.1.6, 19.2.5 |
Referencias
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Debilidad (CWE)
CWE-400, CWE-502- Plataforma
- npm
- Paquete
react-server-dom-parcel, react-server-dom-turbopack, react-server-dom-webpack- Publicada
- 10.04.2026
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-479c-33wc-g2pg - CC BY 4.0
Historial de vulnerabilidades: react-server-dom-parcel
Todas las vulnerabilidades publicadas de este paquete (Paquete de npm), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 8
- Primera → última
- 12.2025 07.2026
- Sin corrección
- 0
- Explotada en ataques
- 1
Distribución por gravedad
- Crítica 1
- Alta 6
- Media 1
Divulgaciones por año
- 2025: 4
- 2026: 4
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React Server Components have a Denial of Service Vulnerability esta entrada
Identifica las vulnerabilidades de tu aplicación
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