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Critical Security Vulnerability in React Server Components

calendar_today December 4, 2025 person domain replit

Yesterday, a critical vulnerability in React Server Components was announced that affects both reactjs and Vercel’s NextJs. The vulnerability is present in versions 19.0, 19.1.0, 19.1.1, and 19.2.0 of: react-server-dom-webpack react-server-dom-parcel react-server-dom-turbopack and Next.js with versions ≥14.3.0-canary.77, ≥15 and ≥16.

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