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| Frontend Frameworks | React Vue

The Invisible Handshake: Understanding the RCE Flaw in React Server Functions

A critical Remote Code Execution (RCE) vulnerability — CVE‑2025‑55182 — recently shook the React ecosystem. It targeted React Server Components (RSC) and React Server Functions, exposing how a subtle deserialization bug could lead to arbitrary code execution on the server.

	import { useState, useRef, useEffect } from "react";

	export function useHover<T extends HTMLElement>() {
	const [isHovered, setIsHovered] = useState(false);
	const ref = useRef<T \| null>(null);

	useEffect(() => {
	const node = ref.current;
	if (!node) return;



	import * as React from 'react';

	function App() {
	return (
	<ErrorBoundary name="boundary-1">
	<A />
	</ErrorBoundary>
	)

	import { Suspense } from 'react';
	import Albums from './Albums.js';

	export default function ArtistPage({ artist }) {
	return (
	<>
	<h1>{artist.name}</h1>
	<Suspense fallback={<Loading />}>
	<Albums artistId={artist.id} />
	</Suspense>

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The Invisible Handshake: Understanding the RCE Flaw in React Server Functions

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