https://nextjs.org/blog/security-update-2025-12-11

Next.js의 추가 보안 업데이트가 있습니다.

지난주에 CVE-2025-66478 보안취약점때문에 부랴부랴 패키지 업데이트한 기억이 있는데, 이번에도 몇개 패치되었네요.

Next.js를 App Router 방식으로 쓰는 개발자분들은 잊지 말고 업데이트하셔요.

fix-react2shell-next 패키지로 검사 및 업데이트 가능합니다.

❯ npx fix-react2shell-next

fix-react2shell-next - Next.js vulnerability scanner

Checking for 4 known vulnerabilities:

  - CVE-2025-66478 (critical): Remote code execution via crafted RSC payload
  - CVE-2025-55184 (high): DoS via malicious HTTP request causing server to hang and consume CPU
  - CVE-2025-55183 (medium): Compiled Server Action source code can be exposed via malicious request
  - CVE-2025-67779 (high): Incomplete fix for CVE-2025-55184 DoS via malicious RSC payload causing infinite loop

...
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