EUVD-2026-27867

Facebook React has a Denial of Service Vulnerability in React Server Components...

GHSA-RV78-F8RC-XRXH Facebook React has a Denial of Service Vulnerability in React Server Components

Impact A denial of service vulnerability could be triggered by sending specially crafted HTTP requests to server function endpoints, this could lead to out-of-memory exceptions or excessive CPU usage. We recommend updating immediately. The vulnerability exists in versions 19.0.0 through 19.0.5,...

@cedarjs/api-server (>=1.0.0-canary.12863 <=9.0.0-canary.1784), @cedarjs/cli (>=1.0.0-canary.12863 <=9.0.0-canary.1784) +12 more potentially affected by CVE-2026-23870 via react-server-dom-webpack (>=19.2.1 <=19.2.4)

react-server-dom-webpack NPM version =19.2.1, =1.0.0-canary.12863, =1.0.0-canary.12863, =1.0.0-canary.12863, =1.0.0-canary.12863, =1.0.0-canary.12863, =3.0.0-canary.13429, =1.0.0-canary.12863, =1.0.0-canary.12863, =1.0.0-canary.12863, =1.0.0-canary.12863, =1.0.0-canary.12863, =1.0.0-canary.12863,...

Facebook React has a Denial of Service Vulnerability in React Server Components

Impact A denial of service vulnerability could be triggered by sending specially crafted HTTP requests to server function endpoints, this could lead to out-of-memory exceptions or excessive CPU usage. We recommend updating immediately. The vulnerability exists in versions 19.0.0 through 19.0.5,...

CVE-2026-23870: Imperva Customers Protected Against Critical React Server Components DoS Vulnerability

TL;DR:A newly disclosed denial-of-service vulnerability, CVE-2026-23870, impacts React Server Components and dependent frameworks, including Next.js App Router deployments. The flaw enables unauthenticated attackers to send specially crafted HTTP requests that trigger excessive CPU consumption...

@amazeelabs/bridge-waku (>=1.1.9 <=2.0.1), @amazeelabs/executors (>=3.1.12 <=3.1.14) +18 more potentially affected by CVE-2026-23870 via react-server-dom-webpack (>=19.0.0 <=19.0.1)

react-server-dom-webpack NPM version =19.0.0, =1.1.9, =3.1.12, =1.4.7, =1.1.3, =1.0.0-canary.12859, =1.0.0-canary.12859, =1.0.0-canary.12859, =1.0.0-canary.12859, =1.0.0-canary.12859, =1.0.0-canary.12859, =1.0.0-canary.12859, =1.0.0-canary.12859, =1.0.0-canary.12859, =1.0.0-canary.12859,...

Allocation of Resources Without Limits or Throttling

Overview react-server-dom-parcel is a React Server Components bindings for DOM using Parcel. This is intended to be integrated into meta-frameworks. It is not intended to be imported directly. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling...

Allocation of Resources Without Limits or Throttling

Overview @vitejs/plugin-rsc is a React Server Components RSC support for Vite. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via server function endpoints. An attacker can cause out-of-memory exceptions or induce excessive CPU usage by...

Allocation of Resources Without Limits or Throttling

Overview next is a react framework. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via server function endpoints. An attacker can cause out-of-memory exceptions or induce excessive CPU usage by sending malicious FormData in an HTTP request...

@cedarjs/api-server (>=1.0.0-canary.12863 <=9.0.0-canary.1784), @cedarjs/cli (>=1.0.0-canary.12863 <=9.0.0-canary.1784) +12 more potentially affected by CVE-2026-23870 via react-server-dom-webpack (>=19.2.1 <=19.2.4)

react-server-dom-webpack NPM version =19.2.1, =1.0.0-canary.12863, =1.0.0-canary.12863, =1.0.0-canary.12863, =1.0.0-canary.12863, =1.0.0-canary.12863, =3.0.0-canary.13429, =1.0.0-canary.12863, =1.0.0-canary.12863, =1.0.0-canary.12863, =1.0.0-canary.12863, =1.0.0-canary.12863, =1.0.0-canary.12863,...

Allocation of Resources Without Limits or Throttling

Overview react-server-dom-webpack is a React Server Components bindings for DOM using Webpack. This is intended to be integrated into meta-frameworks. It is not intended to be imported directly. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttli...

Allocation of Resources Without Limits or Throttling

Overview react-server-dom-turbopack is a React Server Components bindings for DOM using Turbopack. This is intended to be integrated into meta-frameworks. It is not intended to be imported directly. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or...

CVE-2026-23870

A denial of service vulnerability could be triggered by sending specially crafted HTTP requests to server function endpoints, this could lead to server crashes, out-of-memory exceptions or excessive CPU usage; affecting the following packages: react-server-dom-webpack, react-server-dom-parcel,...

CVE-2026-23870

A denial of service vulnerability could be triggered by sending specially crafted HTTP requests to server function endpoints, this could lead to server crashes, out-of-memory exceptions or excessive CPU usage; affecting the following packages: react-server-dom-webpack, react-server-dom-parcel,...

CVE-2026-23870

A denial of service vulnerability could be triggered by sending specially crafted HTTP requests to server function endpoints, this could lead to server crashes, out-of-memory exceptions or excessive CPU usage; affecting the following packages: react-server-dom-webpack, react-server-dom-parcel,...

CVE-2026-23870

A denial of service vulnerability could be triggered by sending specially crafted HTTP requests to server function endpoints, this could lead to server crashes, out-of-memory exceptions or excessive CPU usage; affecting the following packages: react-server-dom-webpack, react-server-dom-parcel,...

CVE-2026-23870

A denial of service vulnerability could be triggered by sending specially crafted HTTP requests to server function endpoints, this could lead to server crashes, out-of-memory exceptions or excessive CPU usage; affecting the following packages: react-server-dom-webpack, react-server-dom-parcel,...

CVE-2026-23870

CVE-2026-23870 is a denial-of-service vulnerability in react-server-dom-webpack, react-server-dom-parcel, and react-server-dom-turbopack. It affects versions 19.0.0–19.0.5, 19.1.0–19.1.6, and 19.2.0–19.2.5. Triggered by specially crafted HTTP requests to server function endpoints, it can cause se...

PT-2026-37660

Name of the Vulnerable Software and Affected Versions react-server-dom-webpack versions 19.0.0 through 19.0.5 react-server-dom-webpack versions 19.1.0 through 19.1.6 react-server-dom-webpack versions 19.2.0 through 19.2.5 react-server-dom-parcel versions 19.0.0 through 19.0.5...

react-server-dom-webpack: react-server-dom-parcel: reactreact-server-dom-turbopack: React Server Components: Denial of Service via specially crafted HTTP requests

A flaw was found in React Server Components. A remote attacker can exploit this vulnerability by sending specially crafted HTTP requests to Server Function endpoints. This can lead to a Denial of Service DoS, causing server crashes, out-of-memory exceptions, or excessive CPU usage, thereby...