React Server Components have multiple Denial of Service Vulnerabilities
Impact
It was found that the fixes to address DoS in React Server Components were incomplete and we found multiple denial of service vulnerabilities still exist in React Server Components.
We recommend updating immediately.
The vulnerability exists in versions 19.0.0, 19.0.1, 19.0.2, 19.0.3, 19.1.0, 19.1.1, 19.1.2, 19.1.3, 19.1.4, 19.2.0, 19.2.1, 19.2.2, 19.2.3 of:
The vulnerabilities are triggered by sending specially crafted HTTP requests to Server Function endpoints, and could lead to server crashes, out-of-memory exceptions or excessive CPU usage; depending on the vulnerable code path being exercised, the application configuration and application code.
Patches
Fixes were back ported to versions 19.0.4, 19.1.5, and 19.2.4.
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, < 19.0.4, >= 19.1.0-canary-7130d0c6-20241212, < 19.1.5, >= 19.2.0-canary-63779030-20250328, < 19.2.4 | 19.0.4, 19.1.5, 19.2.4 |
| Paquete de npm | react-server-dom-turbopack | >= 19.1.0-canary-7130d0c6-20241212, < 19.1.5, >= 19.0.0, < 19.0.4, >= 19.2.0-canary-63779030-20250328, < 19.2.4 | 19.1.5, 19.0.4, 19.2.4 |
| Paquete de npm | react-server-dom-webpack | >= 19.2.0-canary-63779030-20250328, < 19.2.4, >= 19.1.0-canary-7130d0c6-20241212, < 19.1.5, >= 19.0.0, < 19.0.4 | 19.2.4, 19.1.5, 19.0.4 |
Referencias
- https://github.com/facebook/react/security/advisories/GHSA-83fc-fqcc-2hmg
- https://nvd.nist.gov/vuln/detail/CVE-2026-23864
- https://github.com/facebook/react
- https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components
- https://www.facebook.com/security/advisories/cve-2026-23864
- 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- Plataforma
- npm
- Paquete
react-server-dom-parcel, react-server-dom-turbopack, react-server-dom-webpack- Publicada
- 29.01.2026
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-83fc-fqcc-2hmg - CC BY 4.0
Historial de vulnerabilidades: react-server-dom-turbopack
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 multiple Denial of Service Vulnerabilities esta entrada
Identifica las vulnerabilidades de tu aplicación
Con la integración de DockRay y el inventario de software activado, DockRay compara las versiones notificadas de los componentes con las vulnerabilidades conocidas y avisa de las coincidencias confirmadas. La cobertura depende de la tecnología compatible y de los avisos disponibles.