Cloudflare offers protection against a new high profile vulnerability for React Server Components: CVE-2025-55182. All WAF customers are automatically protected as long as the WAF is deployed.
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Critical Security Vulnerability in React Server Components
Discuss @tom.sherman.is's post on Frontpage.
Critical Security Vulnerability in React Server Components – React
The library for web and native user interfaces
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Cloudflare One replaces legacy security perimeters with our global edge, making the Internet faster and safer for teams around the world.
Cloudflare One
Cloudflare One replaces legacy security perimeters with our global edge, making the Internet faster and safer for teams around the world.
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Netlify's response to the critical React security vulnerability
Netlify has patched a critical remote code execution vulnerability in React Server Functions. All Netlify customers are protected.
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There is critical vulnerability in React Server Components disclosed as CVE-2025-55182 that impacts React 19 and frameworks that use it. A fix has been published in React versions 19.0.1, 19.1.2, and 19.2.1. We recommend upgrading immediately. react.dev/blog/2025/12/03/critical-secu…
Critical Security Vulnerability in React Server Components – React
react.devNext.js / React Server Components vulnerability identified. Apps deployed on Deno Deploy infrastructure are already protected by a runtime-level patch applied by our team. See this post for more information on how to protect your projects. deno.com/blog/react-server-functions-r…
React Server Functions / Next.js Vulnerability: Deno Deploy users protected | Deno
deno.comI am very proud of the team for the runtime level mitigation we rolled out to @deno_land Deploy for this. It's very precise, very fast, and way less prone to false positives than the WAF based block. All versions of React are safe now when running on Deno Deploy - yay to vertical integration!
React
There is critical vulnerability in React Server Components disclosed as CVE-2025-55182 that impacts React 19 and frameworks that use it. A fix has been published in React versions 19.0.1, 19.1.2, and 19.2.1. We recommend upgrading immediately. react.dev/blog/2025/12/03/critical-secu…
