🛡️ Sentinel: [CRITICAL] 구조 검증 시 예외 처리 누락으로 인한 DoS 취약점 해결

[seonghobae]

🚨 Severity: CRITICAL
💡 Vulnerability: 파일 파싱 엔드포인트에서 구조 검증을 위한 PdfReader 호출 시 특정 예외만 처리하여 그 외 예상치 못한 예외(예: MemoryError, TypeError) 발생 시 500 에러로 인한 DoS 상태 유발 가능성이 존재했습니다.
🎯 Impact: 악의적인 사용자가 비정상적인 파일을 반복 업로드하여 서비스 가용성을 해치고 서버 크래시를 유발할 수 있습니다.
🔧 Fix: 구조 검증 시 except Exception:으로 모든 예외를 안전하게 잡아내고, 예외 내용을 로깅한 뒤 클라이언트에는 415 상태 코드를 반환하도록 개선했습니다.
✅ Verification: TypeError를 발생시키는 단위 테스트를 추가하여 415 응답과 올바른 로그가 남는지 확인했습니다.

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PR created automatically by Jules for task 17391223737705272512 started by @seonghobae

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Reviewing files that changed from the base of the PR and between e06b1f3 and f00362f.

📒 Files selected for processing (3)

• .jules/sentinel.md
• src/newsdom_api/main.py
• tests/test_parse_endpoint.py

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[devin-ai-integration]

Devin Review found 1 potential issue.

[devin-ai-integration]

🟥 Memory exhaustion bypasses validation handler

A crafted PDF that makes PdfReader raise MemoryError bypasses except Exception. The request can still crash a worker instead of returning 415.

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