GHSA-fv66-9v8q-g76rCriticalCVSS 10.0
React Server Components are Vulnerable to RCE
🔗 CVE IDs covered (1)
📋 Description
Impact
There is an unauthenticated remote code execution vulnerability in React Server Components.
We recommend upgrading immediately.
The vulnerability is present in versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 of:
Patches
A fix was introduced in versions 19.0.1, 19.1.2, and 19.2.1. 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 for more information and upgrade instructions.
🎯 Affected products9
- npm/react-server-dom-webpack:>= 19.1.0, < 19.1.2
- npm/react-server-dom-webpack:= 19.2.0
- npm/react-server-dom-turbopack:>= 19.1.0, < 19.1.2
- npm/react-server-dom-turbopack:= 19.2.0
- npm/react-server-dom-parcel:>= 19.1.0, < 19.1.2
- npm/react-server-dom-parcel:= 19.2.0
- npm/react-server-dom-turbopack:= 19.0.0
- npm/react-server-dom-parcel:= 19.0.0
- npm/react-server-dom-webpack:= 19.0.0
🔗 References (13)
- https://github.com/facebook/react/security/advisories/GHSA-fv66-9v8q-g76r
- https://nvd.nist.gov/vuln/detail/CVE-2025-55182
- https://github.com/facebook/react/pull/35277
- https://github.com/facebook/react/commit/7dc903cd29dac55efb4424853fd0442fef3a8700
- https://github.com/facebook/react/releases/tag/v19.0.1
- https://github.com/facebook/react/releases/tag/v19.1.2
- https://github.com/facebook/react/releases/tag/v19.2.1
- https://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components
- https://www.facebook.com/security/advisories/cve-2025-55182
- https://github.com/ejpir/CVE-2025-55182-poc
- https://news.ycombinator.com/item?id=46136026
- http://www.openwall.com/lists/oss-security/2025/12/03/4
- https://github.com/advisories/GHSA-fv66-9v8q-g76r