CVE-2025-67779

HIGH7.5

It was found that the fix addressing CVE-2025-55184 in React Server Components was incomplete and does not prevent a denial of service attack in a specific case

Published Dec 11, 2025

Modified 4 months ago

Details

It was found that the fix addressing CVE-2025-55184 in React Server Components was incomplete and does not prevent a denial of service attack in a specific case. React Server Components versions 19.0.2, 19.1.3 and 19.2.2 are affected, allowing unsafe deserialization of payloads from HTTP requests to Server Function endpoints. This can cause an infinite loop that hangs the server process and may prevent future HTTP requests from being served.

References

WEB

https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2025-67779

WEB

https://www.facebook.com/security/advisories/cve-2025-67779

CVSS Analysis

CVSS v3.1

7.5

Exploitability

Attack Vector