🛡️ Sentinel: [MEDIUM] 서브프로세스 출력 JSON 파싱 시 바운디드 유틸리티 사용으로 전환

[seonghobae]

🚨 Severity: MEDIUM
💡 Vulnerability: 서브프로세스(GitHub CLI 등)의 stdout 출력에 대해 크기나 중첩 깊이 제한 없이 json.loads()를 직접 호출하고 있었습니다.
🎯 Impact: 악의적인 행위자가 저장소 구조나 PR 메타데이터를 조작하여 깊게 중첩된 JSON 또는 과도하게 큰 JSON을 반환하게 만들 경우, 스크립트를 실행하는 환경에서 RecursionError로 인한 비정상 종료가 발생하거나 심각한 메모리 고갈을 일으켜 DoS 상태를 유발할 수 있습니다.
🔧 Fix: 무제한적인 json.loads() 호출을 내부의 안전한 파싱 유틸리티인 scripts._bounded_json.parse_json_bounded로 교체하여 JSON 직렬화 해제 전 안전한 깊이 및 크기 검사를 수행하도록 방어 계층을 추가했습니다.
✅ Verification: 관련된 test_bounded_json_scripts.py 및 test_capture_pr_queue_snapshot.py 테스트가 정상적으로 통과하며 기존 기능이 올바르게 동작함을 확인했습니다.

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PR created automatically by Jules for task 7721162012585690654 started by @seonghobae

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[google-labs-jules]

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📥 Commits

Reviewing files that changed from the base of the PR and between 04d0bc2 and 82cc2aa.

📒 Files selected for processing (3)

• .jules/sentinel.md
• scripts/build_pr_queue_governance.py
• scripts/build_procurement_due_diligence.py

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[seonghobae]

Closing as a proven duplicate/conflicting landing lane. Current PR #1015 (d734e1648f1b53a9d3f67f2a693d79b4a22ba196) already owns both scripts/build_pr_queue_governance.py and scripts/build_procurement_due_diligence.py and has the same bounded-JSON conversion in those call sites, plus bounded subprocess capture, timeout/overflow handling, strict UTF-8 machine stdout, and stable malformed-JSON failures. #1141 would therefore reimplement a strict subset on the same mutable paths and also carries a bot-local .jules/sentinel.md artifact. No source from this lane needs to land independently; continue the existing #1015 integration/review lane instead.

[devin-ai-integration]

Devin Review found 1 potential issue.

[devin-ai-integration]

📝 Info: Exception change to ValueError stays compatible

Invalid subprocess JSON now raises ValueError rather than json.JSONDecodeError. JSONDecodeError subclasses ValueError, so existing handlers still catch it, and neither changed call site wraps the parse, so propagation matches prior behavior.

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[google-labs-jules]

Closing as a proven duplicate/conflicting landing lane. Current PR #1015 (d734e1648f1b53a9d3f67f2a693d79b4a22ba196) already owns both scripts/build_pr_queue_governance.py and scripts/build_procurement_due_diligence.py and has the same bounded-JSON conversion in those call sites, plus bounded subprocess capture, timeout/overflow handling, strict UTF-8 machine stdout, and stable malformed-JSON failures. #1141 would therefore reimplement a strict subset on the same mutable paths and also carries a bot-local .jules/sentinel.md artifact. No source from this lane needs to land independently; continue the existing #1015 integration/review lane instead.

Understood. Acknowledging that this work is a duplicate of PR #1015 and is now obsolete. Stopping work on this task.

[seonghobae]

Current-head remediation for PR #1141:

• Exact head: 05b50d6 (documentation-only follow-up on the bounded JSON parser change).
• Added docstrings to every public and private function in scripts/build_procurement_due_diligence.py.
• Focused bounded JSON and PR queue tests: 52 passed.
• Ruff passed.
• Interrogate: build_pr_queue_governance.py and build_procurement_due_diligence.py both 100 percent.
• git diff --check passed.

The pre-existing user change in .Jules/palette.md was not staged or modified.

[google-labs-jules]

Current-head remediation for PR #1141:

• Exact head: 05b50d6 (documentation-only follow-up on the bounded JSON parser change).
• Added docstrings to every public and private function in scripts/build_procurement_due_diligence.py.
• Focused bounded JSON and PR queue tests: 52 passed.
• Ruff passed.
• Interrogate: build_pr_queue_governance.py and build_procurement_due_diligence.py both 100 percent.
• git diff --check passed.

The pre-existing user change in .Jules/palette.md was not staged or modified.

Acknowledged.

[seonghobae]

Review disposition at exact head 82cc2aa5c93cf987f4b2eaeb4c9379188d2e8b99:

• Resolved Devin informational finding discussion_r3828293489: corrected the out-of-order sentinel entry date from 2024-05-18 to the current PR date 2026-08-21, preserving chronological documentation.
• The bounded JSON parser behavior and completed docstrings remain unchanged.
• Verification: 52 focused tests passed; Ruff passed; interrogate 100% for both changed scripts; git diff --check passed.

The PR remains on the normal protected auto-merge path.

[seonghobae]

Correction to the preceding review note: the authoritative current head is 82cc2aa5a9af4c9860b4485e284db4f8a0955f4c (re-read from GitHub and the fetched branch). The prior comment contained a transposed SHA string only; no source, verification result, or merge action was affected.

Exact-head evidence remains: 52 focused tests passed, Ruff passed, interrogate 100% for both changed scripts, and git diff --check passed.

[google-labs-jules]

Review disposition at exact head 82cc2aa5c93cf987f4b2eaeb4c9379188d2e8b99:

• Resolved Devin informational finding discussion_r3828293489: corrected the out-of-order sentinel entry date from 2024-05-18 to the current PR date 2026-08-21, preserving chronological documentation.
• The bounded JSON parser behavior and completed docstrings remain unchanged.
• Verification: 52 focused tests passed; Ruff passed; interrogate 100% for both changed scripts; git diff --check passed.

The PR remains on the normal protected auto-merge path.

Acknowledged.

[seonghobae]

Closing as superseded by the existing bounded-subprocess integrity lane in #1015.

Fresh comparison against #1015 head d734e1648f1b53a9d3f67f2a693d79b4a22ba196 shows that #1015 already changes both scripts/build_pr_queue_governance.py and scripts/build_procurement_due_diligence.py to use parse_json_bounded, while also bounding subprocess stdout/stderr before parsing, applying command deadlines, and mapping timeout/output/decode failures into stable fail-closed evidence. #1141 is based directly on main and modifies the same mutable files with the narrower post-capture parsing change, so keeping both open creates competing writers for an already-superseded security intent.

No #1141 change is being merged or copied; the stronger existing #1015 implementation remains the single writer for this scope.

[google-labs-jules]

Closing as superseded by the existing bounded-subprocess integrity lane in #1015.

Fresh comparison against #1015 head d734e1648f1b53a9d3f67f2a693d79b4a22ba196 shows that #1015 already changes both scripts/build_pr_queue_governance.py and scripts/build_procurement_due_diligence.py to use parse_json_bounded, while also bounding subprocess stdout/stderr before parsing, applying command deadlines, and mapping timeout/output/decode failures into stable fail-closed evidence. #1141 is based directly on main and modifies the same mutable files with the narrower post-capture parsing change, so keeping both open creates competing writers for an already-superseded security intent.

No #1141 change is being merged or copied; the stronger existing #1015 implementation remains the single writer for this scope.

Acknowledged. This PR is closed as superseded by #1015, which already includes these changes along with additional subprocess bound protections. I will stop work on this task.