GHSA-2m3v-v2m8-q956
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:
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 for more information and upgrade instructions.
Package Versions Affected
Automatically patch vulnerabilities without upgrading
CVSS Version
Related Resources
References
https://github.com/facebook/react/security/advisories/GHSA-2m3v-v2m8-q956, https://nvd.nist.gov/vuln/detail/CVE-2025-55184, https://github.com/facebook/react, https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components, https://www.facebook.com/security/advisories/cve-2025-55184
Basic Information
