Exploit for Deserialization of Untrusted Data in Facebook React

markdown Summary CVE-2025-55182 Scanner is a high-perfor...

Exploit for CVE-2026-23869

CVE-2026-23869 - Proof of Concept PoC Description This...

Security Bulletin: XSS Vulnerability in React Router meta()/Meta APIs During SSR, affects watsonx.data

Summary React Router @remix-run/react 1.15.0–2.17.0, react-router 7.0.0–7.8.2 is vulnerable to XSS in meta/Meta APIs when generating script:ld+json tags in Framework Mode. Arbitrary JavaScript could execute during SSR if untrusted content is used. No impact occurs in Declarative Mode BrowserRoute...

📄 React Server 19.2.0 Remote Code Execution

React Server versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 proof of concept remote code execution exploit. Exploit Title: React Server 19.2.0 - Remote Code Execution Date: 2025-12-05 Exploit Author: EynaExp https://github.com/EynaExp Vendor Homepage: https://react.dev Software Link:...

React2DoS (CVE-2026-23869): When the Flight Protocol Crashes at Takeoff

Executive Summary In this article, we disclose a new high severity unauthenticated remote denial‑of‑service vulnerability we identified and reported in React Server Components that we’ve dubbed “React2DoS”. In this blog, we’ll analyze its impact and place it in the broader context of recently fou...

K000160686: React framework vulnerability CVE-2026-23869

Security Advisory Description A denial of service vulnerability exists in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack and react-server-dom-webpack versions 19.0.0 through 19.0.4, 19.1.0 through 19.1.5, and 19.2.0 through 19.2.4. T...

React Server 19.2.0 - Remote Code Execution

Exploit Title: React Server 19.2.0 - Remote Code Execution Date: 2025-12-05 Exploit Author: EynaExp https://github.com/EynaExp Vendor Homepage: https://react.dev Software Link: https://react.dev/reference/rsc/server-components Version: 19.0.0, 19.1.0, 19.1.1, 19.2.0 Tested on: Windows,Linux CVE :...

@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) +16 more potentially affected by CVE-2026-23869 via react-server-dom-webpack (>=19.2.0-canary-cee7939b-20250625, <=19.2.4)

react-server-dom-webpack NPM version =19.2.0-canary-cee7939b-20250625, =1.0.0-canary.12863, =1.0.0-canary.12863, =6.0.0-canary.2639, =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,...

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...

@amazeelabs/bridge-waku (>=1.1.0, <=2.0.1), @amazeelabs/executors (>=3.0.0, <=3.1.14) +52 more potentially affected by CVE-2026-23869 via react-server-dom-webpack (>=19.0.0, <=19.0.1)

react-server-dom-webpack NPM version =19.0.0, =1.1.0, =3.0.0, =1.1.0, =1.1.0, =1.0.0-canary.12245, =0.9.1-next.19, =1.0.0-canary.12245, =0.9.1-next.19, =1.0.0-canary.12245, =1.0.0-canary.12245, =1.0.0-canary.12245, =0.9.1-next.19, =1.0.0-canary.12245, =1.0.0-canary.12245, =0.0.4, =2.0.3-next.0 an...

Allocation of Resources Without Limits or Throttling

Overview @modern-js/utils is a progressive web framework based on React. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the createMap, createSet, and extractIterator functions in packages/react-server/src/ReactFlightReplyServer.js. An...

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 next is a react framework. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the createMap, createSet, and extractIterator functions in packages/react-server/src/ReactFlightReplyServer.js. An attacker can crash the server by...

CVE-2026-23869

A denial of service vulnerability exists in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack and react-server-dom-webpack versions 19.0.0 through 19.0.4, 19.1.0 through 19.1.5, and 19.2.0 through 19.2.4. The vulnerability is triggered ...

CVE-2026-23869

A denial of service vulnerability exists in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack and react-server-dom-webpack versions 19.0.0 through 19.0.4, 19.1.0 through 19.1.5, and 19.2.0 through 19.2.4. The vulnerability is triggered ...

CVE-2026-23869

A denial of service vulnerability exists in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack and react-server-dom-webpack versions 19.0.0 through 19.0.4, 19.1.0 through 19.1.5, and 19.2.0 through 19.2.4. The vulnerability is triggered ...

CVE-2026-23869

A denial of service vulnerability exists in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack and react-server-dom-webpack versions 19.0.0 through 19.0.4, 19.1.0 through 19.1.5, and 19.2.0 through 19.2.4. The vulnerability is triggered ...

CVE-2026-23869

A denial of service vulnerability exists in React Server Components, affecting the following packages: react-server-dom-parcel, react-server-dom-turbopack and react-server-dom-webpack versions 19.0.0 through 19.0.4, 19.1.0 through 19.1.5, and 19.2.0 through 19.2.4. The vulnerability is triggered ...

CVE-2026-23869

The CVE-2026-23869 entry describes a Denial-of-Service vulnerability in React Server Components affecting react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. A specially crafted HTTP request to Server Function endpoints can cause the server to experience excessive C...

PT-2026-31432

Name of the Vulnerable Software and Affected Versions: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack versions 19.0.0 through 19.0.4, 19.1.0 through 19.1.5, and 19.2.0 through 19.2.4. Description: A denial of service vulnerability exists in React Server...