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Threat Intelligence Report

React Flight Protocol RCE Vulnerability: CVE-2025-55182 and CVE-2025-66478 Explained

๐Ÿ“… December 5, 2025 ๐Ÿ“ฐ www.picussecurity.com ๐Ÿ” 2 CVE(s) referenced

Critical deserialization flaws in the React Server Components Flight protocol (CVE-2025-55182, CVE-2025-66478) allow unauthenticated remote code execution in React and Next.js, demanding immediate patching to prevent server compromise.

vendor
CVE-2025-55182, CVE-2025-66478

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