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CVE CVE-2025-67779

CVE-2025-67779

React

Severity: HIGH
CVSS: 7.5CVSS
Published: 2025-12-12
Last modified: 2025-12-12
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE: CWE-502CWE-400

Description

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

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-2025-67779

Summary

Description

References