React2Shell: A Critical React and Next.js Flaw Is Actively Exploited
! Update December 15, 2025 Three additional React Server Components (RSC) flaws have been identified, which require further patching: • CVE-2025-55184 CVSS 7.5 and CVE-2025-67779 CVSS 7.5: Both flaws allow pre-authenticated Denial of Service (DoS). CVE-2025-67779 is considered a bypass of the original React2Shell patch. However, exploitation does not allow remote code execution (RCE). • […]



