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7.5
HIGH CVSS 3.1
CVE-2025-55184
"React Server Components Denial of Service Vulnerability"
Description

A pre-authentication denial of service vulnerability exists in React Server Components versions 19.0.0, 19.0.1 19.1.0, 19.1.1, 19.1.2, 19.2.0 and 19.2.1, including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints, which can cause an infinite loop that hangs the server process and may prevent future HTTP requests from being served.

INFO

Published Date :

Dec. 11, 2025, 8:16 p.m.

Last Modified :

Dec. 15, 2025, 5:15 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2025-55184 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Vercel next.js
1 Facebook react
: Total Affected Vendor : 2 | Products : 2
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH [email protected]
Solution
Update React Server Components to a patched version to fix denial of service.
  • Update React Server Components to a patched version.
  • Apply necessary patches or updates.
  • Monitor server for stability.
Public PoC/Exploit Available at Github

CVE-2025-55184 has a 64 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-55184.

URL Resource
https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components Vendor Advisory
https://www.facebook.com/security/advisories/cve-2025-55184 Vendor Advisory
https://github.com/KingHacker353/CVE-2025-55184
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-55184 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-55184 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
yogeshkumar09/yogeshkumar09.github.io

🛡️ Test for the CVE-2025-55184 DoS vulnerability in React Server Components with this safe, non-destructive Python scanner to enhance your application's security.

Updated: 2 days, 4 hours ago
0 stars 0 fork 0 watcher
Born at : Jan. 2, 2026, 5:06 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
yogeshkumar09/CVE-2025-55184_Testing

🛠️ Test and validate the CVE-2025-55184 vulnerability in React Server Components to enhance your application's security against denial-of-service attacks.

cve-2025-55184 cve-scanning cybersecurity cybersecurity-tools dos-attack python python-script react scanner testing

Python

Updated: 1 day, 3 hours ago
0 stars 0 fork 0 watcher
Born at : Jan. 2, 2026, 5:04 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
deeptrust-ai/pgonrails

None

Dockerfile HTML PLpgSQL Shell TypeScript CSS JavaScript

Updated: 3 days, 2 hours ago
0 stars 0 fork 0 watcher
Born at : Jan. 2, 2026, 12:42 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
sijinjeon/kcoc-homepage-v1

None

TypeScript HTML JavaScript PLpgSQL

Updated: 5 days ago
0 stars 0 fork 0 watcher
Born at : Dec. 31, 2025, 2:53 a.m. This repo has been linked 2 different CVEs too.
Profile Photo
MUbaidJavaid/mubaidjavaid

High-performance MERN & Next.js application engineered for scalability, speed, and reliability. Combines modular backend architecture, secure authentication, and immersive UI/UX with React , TypeScript, Tailwind, and Framer Motion. Built for real-world traffic, maintainability, and business impact.

TypeScript CSS JavaScript

Updated: 2 days, 8 hours ago
1 stars 0 fork 0 watcher
Born at : Dec. 30, 2025, 5:30 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
DebaA17/CVE-scanner-cli

A fast, user-friendly CLI tool to search and display CVE details by ID or keyword using public vulnerability databases.

cve-search national-vulnerability-database public-api terminal-based

Python Shell

Updated: 1 week ago
0 stars 0 fork 0 watcher
Born at : Dec. 28, 2025, 1:33 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
staruhub/Healthapp

One lightweight health app

Python Mako TypeScript CSS JavaScript

Updated: 5 days, 1 hour ago
13 stars 2 fork 2 watcher
Born at : Dec. 27, 2025, 3:16 a.m. This repo has been linked 4 different CVEs too.
Profile Photo
yourpwnguy/cveye

Find CVEs that matter. Ignore the noise. Version-aware CVE monitoring for your tech stack

cve-scanning golang monitoring security

Makefile Go

Updated: 1 week, 6 days ago
1 stars 0 fork 0 watcher
Born at : Dec. 22, 2025, 5:42 p.m. This repo has been linked 2 different CVEs too.
Profile Photo
etaionline/Andraia

Fluid ai chat assistant

TypeScript JavaScript CSS Dockerfile

Updated: 1 week, 4 days ago
0 stars 0 fork 0 watcher
Born at : Dec. 22, 2025, 2:12 a.m. This repo has been linked 3 different CVEs too.
Profile Photo
dbwlsdnr95/CVE-2025-55182-React2Shell-Nextjs-RSC-Analysis

None

TypeScript CSS JavaScript

Updated: 2 days ago
0 stars 0 fork 0 watcher
Born at : Dec. 20, 2025, 3:01 p.m. This repo has been linked 3 different CVEs too.
Profile Photo
shubham-01-star/OpsGuard-simulation

OpsGuard eliminates the "3 AM PagerDuty" nightmare, specifically protecting against threats like the recent CVE-2025-55184 (Next.js DoS)

JavaScript HTML CSS TypeScript

Updated: 1 week, 5 days ago
1 stars 0 fork 0 watcher
Born at : Dec. 19, 2025, 5:55 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
hiroky1983/1d_assignment

None

TypeScript CSS JavaScript

Updated: 1 week, 4 days ago
0 stars 0 fork 0 watcher
Born at : Dec. 19, 2025, 3:51 a.m. This repo has been linked 2 different CVEs too.
Profile Photo
mshrynzw/AuraTime

None

PLpgSQL

Updated: 1 week, 6 days ago
1 stars 0 fork 0 watcher
Born at : Dec. 19, 2025, 1:36 a.m. This repo has been linked 3 different CVEs too.
Profile Photo
andrimuhyidin/aerotravel-apps

None

Shell JavaScript TypeScript Dockerfile CSS PLpgSQL Handlebars HTML

Updated: 1 day, 23 hours ago
0 stars 0 fork 0 watcher
Born at : Dec. 17, 2025, 5:20 a.m. This repo has been linked 3 different CVEs too.
Profile Photo
Tarekhshaikh13/CVE-2025-55184

Target Code + Exploit

Dockerfile JavaScript

Updated: 2 weeks, 3 days ago
1 stars 0 fork 0 watcher
Born at : Dec. 17, 2025, 12:45 a.m. This repo has been linked 3 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-55184 vulnerability anywhere in the article.

  • CybersecurityNews
OpenAI GPT-5.2-Codex Supercharges Agentic Coding and Vulnerability Detection

OpenAI has unveiled GPT-5.2-Codex, a cutting-edge model optimized for agentic coding and enhanced cybersecurity tasks. The release highlights breakthroughs in handling complex software engineering and ... Read more

Published Date: Dec 19, 2025 (2 weeks, 3 days ago)
  • The Register
China, Iran are having a field day with React2Shell, Google warns

At least five more Chinese spy crews, Iran-linked goons, and financially motivated criminals are now attacking the React2Shell, a maximum-severity flaw in the widely used React JavaScript library, acc ... Read more

Published Date: Dec 15, 2025 (2 weeks, 6 days ago)
  • The Register
New React vulns leak secrets, invite DoS attacks

If you're running React Server Components, you just can't catch a break. In addition to already-reported flaws, newly discovered bugs allow attackers to hang vulnerable servers and potentially leak Se ... Read more

Published Date: Dec 12, 2025 (3 weeks, 2 days ago)
  • Google Cloud
Multiple Threat Actors Exploit React2Shell (CVE-2025-55182)

Written by: Aragorn Tseng, Robert Weiner, Casey Charrier, Zander Work, Genevieve Stark, Austin Larsen Introduction On Dec. 3, 2025, a critical unauthenticated remote code execution (RCE) vulnerability ... Read more

Published Date: Dec 12, 2025 (3 weeks, 2 days ago)
  • security.nl
Nieuwe React-kwetsbaarheden leiden tot denial of service en broncode-lek

Onderzoekers hebben nieuwe kwetsbaarheden in React Server Components ontdekt waardoor aanvallers een denial of service kunnen veroorzaken of broncode stelen. Er zijn updates beschikbaar gesteld en Rea ... Read more

Published Date: Dec 12, 2025 (3 weeks, 2 days ago)
  • The Hacker News
New React RSC Vulnerabilities Enable DoS and Source Code Exposure

Dec 12, 2025Ravie LakshmananSoftware Security / Vulnerability The React team has released fixes for two new types of flaws in React Server Components (RSC) that, if successfully exploited, could res ... Read more

Published Date: Dec 12, 2025 (3 weeks, 2 days ago)
  • Daily CyberSecurity
React Patches Two New Flaws Risking Server-Crashing DoS and Source Code Disclosure

The security saga surrounding React Server Components continues this week. Just days after the React team patched a critical remote code execution (RCE) flaw, security researchers digging into those v ... Read more

Published Date: Dec 12, 2025 (3 weeks, 2 days ago)
  • CybersecurityNews
New Vulnerabilities in React Server Components Allow DoS Attacks and Source Code Leaks

Less than a week after addressing a critical Remote Code Execution (RCE) vulnerability, the React team has disclosed three additional security flaws affecting React Server Components (RSC). Security r ... Read more

Published Date: Dec 12, 2025 (3 weeks, 3 days ago)
  • The Cloudflare Blog
React2Shell and related RSC vulnerabilities threat brief: early exploitation activity and threat actor techniques

2025-12-117 min readOn December 3, 2025, immediately following the public disclosure of the critical, maximum-severity React2Shell vulnerability (CVE-2025-55182), the Cloudforce One Threat Intelligenc ... Read more

Published Date: Dec 11, 2025 (3 weeks, 3 days ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-55184 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Dec. 15, 2025

    Action Type Old Value New Value
    Added Reference https://github.com/KingHacker353/CVE-2025-55184
  • Initial Analysis by [email protected]

    Dec. 12, 2025

    Action Type Old Value New Value
    Added CWE CWE-502
    Added CPE Configuration OR *cpe:2.3:a:facebook:react:*:*:*:*:*:*:*:* versions from (including) 19.0.0 up to (excluding) 19.0.2 *cpe:2.3:a:facebook:react:*:*:*:*:*:*:*:* versions from (including) 19.1.0 up to (excluding) 19.1.3 *cpe:2.3:a:facebook:react:*:*:*:*:*:*:*:* versions from (including) 19.2.0 up to (excluding) 19.2.2
    Added CPE Configuration OR *cpe:2.3:a:vercel:next.js:15.6.0:-:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary0:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary1:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary10:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary11:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary12:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary13:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary14:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary15:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary16:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary17:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary18:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary19:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary2:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary20:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary21:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary22:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary23:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary24:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary25:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary26:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary27:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary28:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary29:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary3:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary30:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary31:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary32:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary33:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary34:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary35:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary36:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary37:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary38:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary39:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary4:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary40:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary41:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary42:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary43:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary44:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary45:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary46:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary47:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary48:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary49:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary5:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary50:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary51:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary52:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary53:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary54:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary55:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary56:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary57:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary6:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary7:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary8:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary9:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:* versions from (including) 13.3.0 up to (excluding) 14.2.35 *cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:* versions from (including) 15.0.0 up to (excluding) 15.0.7 *cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:* versions from (including) 15.1.0 up to (excluding) 15.1.11 *cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:* versions from (including) 15.2.0 up to (excluding) 15.2.8 *cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:* versions from (including) 15.3.0 up to (excluding) 15.3.8 *cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:* versions from (including) 15.4.0 up to (excluding) 15.4.10 *cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:* versions from (including) 15.5.0 up to (excluding) 15.5.9 *cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:* versions from (including) 16.0.0 up to (excluding) 16.0.10 *cpe:2.3:a:vercel:next.js:15.6.0:canary58:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary59:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:16.1.0:-:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:16.1.0:canary0:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:16.1.0:canary1:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:16.1.0:canary10:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:16.1.0:canary11:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:16.1.0:canary12:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:16.1.0:canary13:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:16.1.0:canary14:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:16.1.0:canary15:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:16.1.0:canary16:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:16.1.0:canary17:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:16.1.0:canary18:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:16.1.0:canary2:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:16.1.0:canary3:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:16.1.0:canary4:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:16.1.0:canary5:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:16.1.0:canary6:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:16.1.0:canary7:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:16.1.0:canary8:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:16.1.0:canary9:*:*:*:node.js:*:*
    Added Reference Type Facebook, Inc.: https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components Types: Vendor Advisory
    Added Reference Type Facebook, Inc.: https://www.facebook.com/security/advisories/cve-2025-55184 Types: Vendor Advisory
  • New CVE Received by [email protected]

    Dec. 11, 2025

    Action Type Old Value New Value
    Added Description A pre-authentication denial of service vulnerability exists in React Server Components versions 19.0.0, 19.0.1 19.1.0, 19.1.1, 19.1.2, 19.2.0 and 19.2.1, including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints, which can cause an infinite loop that hangs the server process and may prevent future HTTP requests from being served.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added Reference https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components
    Added Reference https://www.facebook.com/security/advisories/cve-2025-55184
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 7.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact