CVE-2025-55184: additional act vulnerabilities (CVE-2025-55183, CVE-2025-55184, CVE-2025-67779)
## Impact There is a denial of service vulnerability in React Server Components. React recommends updating immediately. The vulnerability exists in versions 19.0.0, 19.0.1 19.1.0, 19.1.1, 19.1.2, 19.2.0 and 19.2.1 of: - [react-server-dom-webpack](https://www.npmjs.com/package/react-server-dom-webpack) - [react-server-dom-parcel](https://www.npmjs.com/package/react-server-dom-parcel) - [react-server-dom-turbopack](https://www.npmjs.com/package/react-server-dom-turbopack?activeTab=readme) These issues are present in the patches published last week. ## Patches Fixes were back ported to versions 19.0.2, 19.1.3, and 19.2.2. If you are using any of the above packages please upgrade to any of the fixed versions immediately. If your app’s React code does not use a server, your app is not affected by this vulnerability. If your app does not use a framework, bundler, or bundler plugin that supports React Server Components, your app is not affected by this vulnerability. ## References See the [blog post](https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components) for more information and upgrade instructions.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-55184?
CVE-2025-55184 is classified as a denial of service vulnerability that can disrupt application availability.
How do I fix CVE-2025-55184?
To fix CVE-2025-55184, upgrade to the latest version of React Server Components that is not affected by the vulnerability.
Which versions of React are affected by CVE-2025-55184?
CVE-2025-55184 affects React Server Components versions 19.0.0 to 19.2.1.
What components are impacted by CVE-2025-55184?
CVE-2025-55184 impacts the packages react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack.
What type of vulnerability is CVE-2025-55184?
CVE-2025-55184 is a pre-authentication denial of service vulnerability.