Critical CVSS 10.0 Vulnerability in React & Next.js Requires Immediate Patch
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A critical vulnerability with a CVSS score of 10.0 has been identified in React Server Components, specifically affecting the Flight protocol. This flaw allows unauthenticated attackers to execute remote code, impacting applications built with React and Next.js. Users are urged to apply patches immediately to mitigate potential exploitation.
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Updated 230d ago How this analysis works
Timeline
2025-01-05
CVE-2025-66478 published
2026-02-24
Article 2 published detailing the vulnerability
2026-02-27
Article 1 published urging immediate patching
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Critical RCE Vulnerability in Meta React Server Components Discovered CVE-2025-55182 is a critical remote code execution vulnerability in Meta React Server Components, with a CVSS score of 10.0. It allows unauthenticated attackers to execute arbitrary commands on the server by sending crafted JSON payloads. This vulnerability was added to CISA's Known Exploited Vulnerabilities catalog… 
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