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.devDec 3, 2025 at 3:45 PM
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
GitHub - fatguru/CVE-2025-55182-scanner: A non-intrusive surface scanner for CVE-2025-55182 (React Server Components RCE). Detects exposed RSC endpoints in React 19 and Next.js applications
A non-intrusive surface scanner for CVE-2025-55182 (React Server Components RCE). Detects exposed RSC endpoints in React 19 and Next.js applications - fatguru/CVE-2025-55182-scanner
Railway on Twitter / X
A critical RCE vulnerability was discovered in React Server Components. Railway has collaborated with Meta/Vercel teams & deployed a platform-level patch that blocks malicious requests matching this exploit pattern at our Web Application Firewall.Your service is protected while… https://t.co/8a5WWYshzN— Railway (@Railway) December 3, 2025
Cloudflare WAF proactively protects against React vulnerability
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.
High Fidelity Detection Mechanism for RSC/Next.js RCE (CVE-2025-55182 & CVE-2025-66478) › Searchlight Cyber
This morning, an advisory was released for Next.js about a vulnerability that leads to RCE in default configurations, with no prerequisites. The root cause of this issue lies in React Server Components, which Next.js utilizes. Over the last day, we have noticed an incredible amount of incorrect PoCs floating around on GitHub that do not
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.
Summary of CVE-2025-55182 - Vercel
Vercel has provided a patch for CVE-2025-55182 affecting any frameworks allowing Server Components usage.
State of React 2025
The 2025 edition of the annual survey about the latest trends in the React ecosystem.
How an Omitted Write Barrier in V8 Turns Into RCE in Chrome: CVE-2026-5865
In March, our system detected a severe vulnerability in V8, the JavaScript engine used by Chrome. This vulnerability enabled remote code execution against billions of Chrome users worldwide.
GitHub RCE Vulnerability: CVE-2026-3854 Breakdown | Wiz Blog
A CVSS 8.7 vulnerability in GitHub Enterprise Server allows remote code execution. Read the threat brief and find vulnerable GHES instances from Wiz.
Mitigating High Severity RunC Vulnerability (CVE-2019-5736)
A high severity (CVSS score 7.2) vulnerability (CVE-2019-5763) was found in runc, allowing attackers to compromise the container host. Patches are already available from most providers. Aqua customers can prevent this vulnerability from being exploited by applying the appropriate runtime policies.
GitHub - lachlan2k/React2Shell-CVE-2025-55182-original-poc: Original Proof-of-Concept's for React2Shell CVE-2025-55182
Original Proof-of-Concept's for React2Shell CVE-2025-55182 - lachlan2k/React2Shell-CVE-2025-55182-original-poc
Next.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…
