CVE-2026-23870
Facebook React has a Denial of Service Vulnerability in React Server Components
描述
## Impact A denial of service vulnerability could be triggered by sending specially crafted HTTP requests to server function endpoints, this could lead to out-of-memory exceptions or excessive CPU usage. We recommend updating immediately. The vulnerability exists in versions 19.0.0 through 19.0.5, 19.1.0 through 19.1.6, and 19.2.0 through 19.2.5 of: [react-server-dom-webpack](https://www.npmjs.com/package/react-server-dom-webpack) [react-server-dom-parcel](https://www.npmjs.com/package/react-server-dom-parcel) [react-server-dom-turbopack](https://www.npmjs.com/package/react-server-dom-turbopack?activeTab=readme) ## Patches Fixes were back ported to versions 19.0.6, 19.1.7, and 19.2.6. 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](https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components) for more information and upgrade instructions.
如何修補 CVE-2026-23870
要修補 CVE-2026-23870,請將受影響套件升級到下列已修補版本。
- —升級至 19.0.6 或更新版本
- —升級至 19.0.6 或更新版本
- —升級至 19.0.6 或更新版本
CVE-2026-23870 正在被利用嗎?
低 — EPSS 為 1.5%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- >= 19.0.0, < 19.0.6