Описание
Denial of Service Vulnerability in React Server Components
Impact
It was found that the fix to address CVE-2025-55184 in React Server Components was incomplete and does not prevent a denial of service attack in a specific case.
We recommend updating immediately.
The vulnerability exists in versions 19.0.2, 19.1.3, and 19.2.2 of:
These issues are present in the patches published on December 11th, 2025.
Patches
Fixes were back ported to versions 19.0.3, 19.1.4, and 19.2.3.
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.
Ссылки
Пакеты
react-server-dom-parcel
>= 19.0.2, < 19.0.3
19.0.3
react-server-dom-parcel
>= 19.1.3, < 19.1.4
19.1.4
react-server-dom-parcel
>= 19.2.2, < 19.2.3
19.2.3
react-server-dom-turbopack
>= 19.0.2, < 19.0.3
19.0.3
react-server-dom-turbopack
>= 19.1.3, < 19.1.4
19.1.4
react-server-dom-turbopack
>= 19.2.2, < 19.2.3
19.2.3
react-server-dom-webpack
>= 19.0.2, < 19.0.3
19.0.3
react-server-dom-webpack
>= 19.1.3, < 19.1.4
19.1.4
react-server-dom-webpack
>= 19.2.2, < 19.2.3
19.2.3
Связанные уязвимости
It was found that the fix addressing CVE-2025-55184 in React Server Components was incomplete and does not prevent a denial of service attack in a specific case. React Server Components versions 19.0.2, 19.1.3 and 19.2.2 are affected, allowing unsafe deserialization of payloads from HTTP requests to Server Function endpoints. This can cause an infinite loop that hangs the server process and may prevent future HTTP requests from being served.