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πŸ›‘οΈ Sentinel: [MEDIUM] DoS 취약점 해결을 μœ„ν•œ JSON νŒŒμ‹± κ°œμ„  - #299

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πŸ›‘οΈ Sentinel: [MEDIUM] DoS 취약점 해결을 μœ„ν•œ JSON νŒŒμ‹± κ°œμ„ #299
seonghobae wants to merge 1 commit into
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fix-json-dos-report-10611008310086477097

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@seonghobae

@seonghobae seonghobae commented Jul 26, 2026

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🚨 Severity

MEDIUM

πŸ’‘ Vulnerability

python/fast_mlsirm/report.py의 render_diagnostics_report ν•¨μˆ˜μ—μ„œ json.loads(source.read_text(encoding="utf-8"))λ₯Ό μ‚¬μš©ν•˜μ—¬ μ™ΈλΆ€ 파일 데이터λ₯Ό ν¬κΈ°λ‚˜ 깊이 μ œν•œ 없이 λ©”λͺ¨λ¦¬μ— 읽어듀이고 νŒŒμ‹±ν–ˆμŠ΅λ‹ˆλ‹€.

🎯 Impact

μ•…μ˜μ μΈ μ‚¬μš©μžκ°€ 맀우 ν¬κ±°λ‚˜ 쀑첩이 κΉŠμ€ JSON νŒŒμΌμ„ μ œκ³΅ν•  경우, μ• ν”Œλ¦¬μΌ€μ΄μ…˜μ΄ OOM(Out of Memory)으둜 인해 κ°•μ œ μ’…λ£Œλ˜κ±°λ‚˜ λ¦¬μ†ŒμŠ€κ°€ κ³ κ°ˆλ˜λŠ” DoS(Denial of Service) 곡격에 λ…ΈμΆœλ  수 μžˆμŠ΅λ‹ˆλ‹€.

πŸ”§ Fix

λ¬΄μ œν•œ json.loads ν˜ΈμΆœμ„ μ œκ±°ν•˜κ³ , λ‚΄λΆ€ μœ ν‹Έλ¦¬ν‹°μΈ fast_mlsirm.io._load_json_boundedλ₯Ό μ‚¬μš©ν•˜λ„λ‘ λ³€κ²½ν–ˆμŠ΅λ‹ˆλ‹€. 이 ν•¨μˆ˜λŠ” νŒŒμ‹± 전에 μž…λ ₯의 크기와 깊이λ₯Ό μ•ˆμ „ν•˜κ²Œ μ œν•œν•˜μ—¬ DoS μœ„ν—˜μ„ λ°©μ§€ν•©λ‹ˆλ‹€. λ˜ν•œ λΆˆν•„μš”ν•΄μ§„ json μž„ν¬νŠΈλ₯Ό μ œκ±°ν–ˆμŠ΅λ‹ˆλ‹€.

βœ… Verification

  1. uv run ruff format 및 uv run ruff check 톡과.
  2. uv run pytest tests/test_security_hardening.py 톡과.

PR created automatically by Jules for task 10611008310086477097 started by @seonghobae

Summary by CodeRabbit

  • 버그 μˆ˜μ •

    • 진단 리포트 생성 μ‹œ JSON μž…λ ₯에 크기와 쀑첩 깊이 μ œν•œμ„ μ μš©ν–ˆμŠ΅λ‹ˆλ‹€.
    • μ•…μ˜μ μœΌλ‘œ μ‘°μž‘λœ λŒ€μš©λŸ‰ λ˜λŠ” κ³Όλ„ν•˜κ²Œ μ€‘μ²©λœ JSON으둜 μΈν•œ λ©”λͺ¨λ¦¬ 고갈 및 μ„œλΉ„μŠ€ κ±°λΆ€(DoS) μœ„ν—˜μ„ μ™„ν™”ν–ˆμŠ΅λ‹ˆλ‹€.
    • κΈ°μ‘΄ 리포트 μœ ν˜• νŒλ³„κ³Ό HTML λ Œλ”λ§ λ™μž‘μ€ λ³€κ²½λ˜μ§€ μ•Šμ•˜μŠ΅λ‹ˆλ‹€.
  • λ¬Έμ„œ

    • JSON 기반 μ„œλΉ„μŠ€ κ±°λΆ€ 취약점과 λŒ€μ‘ λ°©μ•ˆμ„ λ³΄μ•ˆ 기둝에 μΆ”κ°€ν–ˆμŠ΅λ‹ˆλ‹€.

Copilot AI review requested due to automatic review settings July 26, 2026 19:00
@google-labs-jules

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@coderabbitai

coderabbitai Bot commented Jul 26, 2026

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Review Change Stack

No actionable comments were generated in the recent review. πŸŽ‰

ℹ️ Recent review info
βš™οΈ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 276208bf-deca-4c06-a2d7-978c0168a613

πŸ“₯ Commits

Reviewing files that changed from the base of the PR and between a3123a2 and 17862b8.

πŸ“’ Files selected for processing (2)
  • .jules/sentinel.md
  • python/fast_mlsirm/report.py

πŸ“ Walkthrough

Walkthrough

진단 리포트의 JSON μž…λ ₯ 처리λ₯Ό _load_json_bounded 기반의 μ œν•œλœ μ—­μ§λ ¬ν™”λ‘œ λ³€κ²½ν•˜κ³ , λŒ€μš©λŸ‰ λ˜λŠ” 깊게 μ€‘μ²©λœ JSON으둜 μΈν•œ DoS μœ„ν—˜κ³Ό λŒ€μ‘ λ°©μ•ˆμ„ Sentinel λ¬Έμ„œμ— κΈ°λ‘ν–ˆμŠ΅λ‹ˆλ‹€.

Changes

진단 JSON 보호

Layer / File(s) Summary
μ œν•œλœ 진단 JSON λ‘œλ”©
.jules/sentinel.md, python/fast_mlsirm/report.py
render_diagnostics_reportκ°€ μ œν•œλœ JSON λ‘œλ”λ₯Ό μ‚¬μš©ν•˜λ„λ‘ λ³€κ²½λ˜μ—ˆμœΌλ©°, κ΄€λ ¨ importκ°€ κ°±μ‹ λ˜κ³  JSON 기반 DoS λŒ€μ‘ λ‚΄μš©μ΄ λ¬Έμ„œν™”λ˜μ—ˆμŠ΅λ‹ˆλ‹€.

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

Suggested reviewers: copilot

πŸš₯ Pre-merge checks | βœ… 5
βœ… Passed checks (5 passed)
Check name Status Explanation
Description Check βœ… Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check βœ… Passed DoS μ™„ν™”λ₯Ό μœ„ν•œ JSON νŒŒμ‹± κ°œμ„ μ΄λΌλŠ” 핡심 변경을 잘 μš”μ•½ν•˜κ³  μžˆμ–΄ λ³€κ²½ λ‚΄μš©κ³Ό 관련성이 λ†’μŠ΅λ‹ˆλ‹€.
Docstring Coverage βœ… Passed No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check βœ… Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check βœ… Passed Check skipped because no linked issues were found for this pull request.
✨ Finishing Touches
πŸ“ Generate docstrings
  • Create stacked PR
  • Commit on current branch
πŸ§ͺ Generate unit tests (beta)
  • Create PR with unit tests
  • Commit unit tests in branch fix-json-dos-report-10611008310086477097

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Pull request overview

This PR hardens the HTML diagnostics report renderer against JSON-based Denial of Service (DoS) by replacing unbounded json.loads(source.read_text(...)) parsing with the project’s bounded JSON loader utility.

Changes:

  • Replace direct json.loads of a fully-read file with fast_mlsirm.io._load_json_bounded in render_diagnostics_report.
  • Remove the now-unneeded json import.
  • Document the JSON DoS learning/prevention pattern in .jules/sentinel.md.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File Description
python/fast_mlsirm/report.py Uses _load_json_bounded to enforce input-size and nesting-depth limits when loading diagnostics JSON.
.jules/sentinel.md Adds a security β€œSentinel” note documenting the JSON DoS pattern and the preferred bounded loader.

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쀑볡 정리: report.py λ¬΄μ œν•œ JSON λ‘œλ”© DoS μˆ˜μ •μœΌλ‘œ, 리뷰 λŒ€κΈ° 쀑인 #203 κ³Ό 동일 λŒ€μƒΒ·λ™μΌ μ·¨μ§€μž…λ‹ˆλ‹€. #203 을 λŒ€ν‘œλ‘œ 남기고 λ‹«μŠ΅λ‹ˆλ‹€. ν•„μš” μ‹œ μž¬μ˜€ν”ˆ κ°€λŠ₯ν•©λ‹ˆλ‹€.


Generated by Claude Code

@google-labs-jules

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쀑볡 정리: report.py λ¬΄μ œν•œ JSON λ‘œλ”© DoS μˆ˜μ •μœΌλ‘œ, 리뷰 λŒ€κΈ° 쀑인 #203 κ³Ό 동일 λŒ€μƒΒ·λ™μΌ μ·¨μ§€μž…λ‹ˆλ‹€. #203 을 λŒ€ν‘œλ‘œ 남기고 λ‹«μŠ΅λ‹ˆλ‹€. ν•„μš” μ‹œ μž¬μ˜€ν”ˆ κ°€λŠ₯ν•©λ‹ˆλ‹€.


Generated by Claude Code

μ΄ν•΄ν–ˆμŠ΅λ‹ˆλ‹€. μž‘μ—… λ‚΄μš©μ΄ μ€‘λ³΅λ˜μ–΄ ν•΄λ‹Ή PR에 λŒ€ν•œ μž‘μ—…μ„ μ€‘λ‹¨ν•˜κ² μŠ΅λ‹ˆλ‹€.

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