🛡️ Sentinel: [MEDIUM] 클라이언트 측 로그 포징(Log Forging) 취약점 수정

[seonghobae]

🚨 Severity: MEDIUM
💡 Vulnerability: i18n.js에서 검증되지 않은 사용자 입력(lang 변수)을 console.warn을 통해 그대로 출력함으로써 로그 포징 및 잠재적인 XSS 위험이 존재했습니다.
🎯 Impact: 공격자가 조작된 언어 값을 주입하여 개발자 콘솔의 로그를 변조하거나 혼란을 줄 수 있습니다.
🔧 Fix: 로그 메시지를 작성할 때 사용자 입력을 동적으로 포함시키는 대신, 안전한 정적 메시지("[Security] Invalid language requested. Falling back to default.")를 사용하도록 변경했습니다.
✅ Verification: pytest --cov=tests/ tests/를 통해 모든 테스트(16건)가 100% 코드 커버리지로 통과함을 확인했습니다.

---

PR created automatically by Jules for task 2475432674726946409 started by @seonghobae

Summary by CodeRabbit

• 버그 수정

  • 잘못된 언어 설정값이 경고 로그에 표시되지 않도록 개선했습니다.
  • 고정된 보안 메시지를 사용해 클라이언트 측 로그 포징 위험을 줄였습니다.

• 문서

  • 관련 보안 지침을 업데이트했습니다.

[google-labs-jules]

👋 Jules, reporting for duty! I'm here to lend a hand with this pull request.

When you start a review, I'll add a 👀 emoji to each comment to let you know I've read it. I'll focus on feedback directed at me and will do my best to stay out of conversations between you and other bots or reviewers to keep the noise down.

I'll push a commit with your requested changes shortly after. Please note there might be a delay between these steps, but rest assured I'm on the job!

For more direct control, you can switch me to Reactive Mode. When this mode is on, I will only act on comments where you specifically mention me with @jules. You can find this option in the Pull Request section of your global Jules UI settings. You can always switch back!

New to Jules? Learn more at jules.google/docs.

---

For security, I will only act on instructions from the user who triggered this task.

[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: e5e47011-f9fb-4a8f-979e-cebf7cbf4b92

📥 Commits

Reviewing files that changed from the base of the PR and between 7723bf2 and f555b05.

📒 Files selected for processing (3)

• .jules/sentinel.md
• CHANGELOG.md
• i18n.js

---

📝 Walkthrough

Walkthrough

setLanguage가 검증되지 않은 lang 값을 경고 로그에 포함하지 않습니다. 정적 경고 메시지를 사용하고 관련 보안 기록과 변경 로그를 추가했습니다.

Changes

클라이언트 로그 포징 방지

Layer / File(s)	Summary
정적 언어 경고 메시지 i18n.js, CHANGELOG.md, .jules/sentinel.md	setLanguage의 잘못된 언어 경고에서 lang 입력을 제거했습니다. 보안 변경 사항을 변경 로그와 보안 기록에 반영했습니다.

Estimated code review effort: 1 (Trivial) | ~5분

Possibly related PRs

• ContextualWisdomLab/ContextualWisdomLab.github.io#161: 동일한 i18n.js 경고 로그와 관련 기록을 수정합니다.

🚥 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	제목은 클라이언트 측 로그 포징 취약점 수정이라는 변경 사항의 핵심을 명확하고 구체적으로 설명합니다.
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-log-forging-2475432674726946409

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}

[seonghobae]

PR #170 is the canonical current-base owner for this identical constant-warning change. It adds a branch-scoped no-raw-lang regression, preserves hostile browser-harness inputs, incorporates .coverage hygiene from #167, records the browser-console claim boundary and rollback with APA 7 references, and removes bot-only journal churn. This branch contributes no unique safe product behavior or test contract. #170 must satisfy its own exact-head tests, security checks, review, and live protection; no evidence transfers. Closing as superseded.

[google-labs-jules]

PR #170 is the canonical current-base owner for this identical constant-warning change. It adds a branch-scoped no-raw-lang regression, preserves hostile browser-harness inputs, incorporates .coverage hygiene from #167, records the browser-console claim boundary and rollback with APA 7 references, and removes bot-only journal churn. This branch contributes no unique safe product behavior or test contract. #170 must satisfy its own exact-head tests, security checks, review, and live protection; no evidence transfers. Closing as superseded.

Understood. Acknowledging that this work is now obsolete and stopping work on this task.