🛡️ Sentinel: [MEDIUM] Fix unbounded JSON loading in report generator

[seonghobae]

🚨 Severity: MEDIUM
💡 Vulnerability: Unbounded file reading and parsing using json.loads(source.read_text()) in python/fast_mlsirm/report.py exposed a potential Denial-of-Service (DoS) vector via memory exhaustion.
🎯 Impact: An attacker or malformed process providing an exceptionally large JSON diagnostics file could cause the application to consume unbounded memory and crash.
🔧 Fix: Replaced json.loads with the project's internal _load_json_bounded utility to enforce a strict byte limit.
✅ Verification: Ran pytest to ensure all tests (including security hardening and cli tests) pass. No regressions observed.

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PR created automatically by Jules for task 2233323429549075026 started by @seonghobae

Summary by CodeRabbit

• 버그 수정

  • HTML 리포트 생성 시 진단 JSON 파일의 크기를 제한해 처리하도록 개선했습니다.
  • 매우 큰 JSON 파일로 인한 메모리 고갈 위험을 줄였습니다.

• 문서

  • 무제한 JSON 로딩에 따른 보안 위험과 권장 처리 방식을 문서화했습니다.

[google-labs-jules]

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 8e482919-bcd3-48c3-85a2-22ba6dabc192

📥 Commits

Reviewing files that changed from the base of the PR and between a3123a2 and bea95bf.

📒 Files selected for processing (2)

• .jules/sentinel.md
• python/fast_mlsirm/report.py

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📝 Walkthrough

Walkthrough

진단 JSON 로딩이 전체 파일을 메모리에 적재하는 방식에서 _load_json_bounded를 사용하는 방식으로 변경되었습니다. 관련 위험과 권장 유틸리티 사용법이 .jules/sentinel.md에 문서화되었습니다.

Changes

진단 JSON 로딩

Layer / File(s)	Summary
Bounded 진단 JSON 로딩 .jules/sentinel.md, python/fast_mlsirm/report.py	render_diagnostics_report가 _load_json_bounded로 진단 JSON을 로드하며, 무제한 read_text() 및 json.loads() 사용에 대한 경고 문서가 추가되었습니다.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related PRs

• ContextualWisdomLab/fast-mlsirm#299: 동일한 진단 JSON 로딩 경로를 bounded loader로 변경합니다.
• ContextualWisdomLab/fast-mlsirm#322: 동일한 report.py 진단 JSON 로딩 수정을 포함합니다.
• ContextualWisdomLab/fast-mlsirm#329: render_diagnostics_report의 JSON 로딩과 관련 import를 동일하게 변경합니다.

Suggested reviewers: copilot

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	리포트 생성기의 무제한 JSON 로딩을 제한된 로딩으로 바꾸는 핵심 변경을 잘 요약합니다.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch sentinel/fix-unbounded-json-report-2233323429549075026

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[seonghobae]

중복 정리: report.py 무제한 JSON 로딩 DoS 수정으로, 리뷰 대기 중인 #203 과 동일 대상·동일 취지입니다. #203 을 대표로 남기고 닫습니다. 필요 시 재오픈 가능합니다.

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Generated by Claude Code

[google-labs-jules]

중복 정리: report.py 무제한 JSON 로딩 DoS 수정으로, 리뷰 대기 중인 #203 과 동일 대상·동일 취지입니다. #203 을 대표로 남기고 닫습니다. 필요 시 재오픈 가능합니다.

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Generated by Claude Code

알겠습니다. 이 작업이 중복으로 간주되어 PR이 닫혔음을 확인하였으며, 이 작업은 중단하도록 하겠습니다.