🛡️ Sentinel: [CRITICAL] Fix weak regex in readline to prevent DoS

[seonghobae]

🚨 Severity: CRITICAL
💡 Vulnerability: aFIPC.R에서 사용자의 입력을 받는 readline()에 사용된 정규식이 ^[0-9]+$로 너무 느슨하게 설정되어 있었습니다. 이로 인해 '1'이나 '2' 외에 매우 큰 숫자나 예상치 못한 문자열을 입력할 경우 R의 as.integer()에서 NA를 반환하거나 형변환 에러를 일으켜 어플리케이션이 크래시되거나 무한 루프에 빠질(DoS) 위험이 존재했습니다.
🎯 Impact: 사용자의 비정상적인 입력으로 인한 프로세스 크래시 및 서비스 거부(DoS) 공격.
🔧 Fix: 정규표현식을 ^[0-9]+$에서 ^[12]$로 변경하여 정확히 1 또는 2의 입력만 허용하도록 입력 검증(Input Validation)을 엄격하게 강화했습니다.
✅ Verification: devtools::test()를 통해 전체 테스트가 회귀 없이 통과함을 확인했습니다.

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PR created automatically by Jules for task 11106189989129021872 started by @seonghobae

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[opencode-agent]

Pull request overview

OpenCode cannot approve yet because required coverage evidence did not pass.

Review outcome

1. HIGH .github/workflows/opencode-review.yml:1 - Coverage evidence did not prove required test/docstring evidence

• Problem: The required coverage-evidence job result was failure, so OpenCode cannot establish approval sufficiency for this head.

• Root cause: Automated approval is only valid when the same-head coverage-evidence job proves supported repository test suites passed and configured docstring gates passed or were advisory, or reports not applicable because no supported source files or package manifests exist. Missing, failed, skipped, unavailable, or unsupported-tooling test evidence is a blocker.

• Fix: Install or configure the repository test/docstring evidence tooling when source files or package manifests exist, rerun the current-head coverage-evidence job, and approve only after it reports success with required evidence or explicit no-source not-applicable evidence.

• Regression test: Keep the approval branch checking needs.coverage-evidence.result == success before posting APPROVE, and publish REQUEST_CHANGES when coverage-evidence blocker states such as cancelled, skipped, failed, unsupported-tooling, or below-100 evidence are present.

• Result: REQUEST_CHANGES

• Reason: coverage-evidence result was failure, so required test/docstring evidence was not proven for current head 33c59adc50fa53f59a8eb9566485281f3a1fd5d0.

• Head SHA: 33c59adc50fa53f59a8eb9566485281f3a1fd5d0

• Workflow run: 29653645418

• Workflow attempt: 1

Coverage evidence

Coverage Decision

• Result: FAIL
• Test evidence: not proven passing
• Docstring evidence: not proven passing when configured
• Failure count: 1

Changed-File Evidence Map

flowchart LR
  PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
  Evidence --> S1["Changed file (2 files)"]
  S1 --> I1["repository behavior"]
  I1 --> R1["Review risk: Changed file (2 files)"]
  R1 --> V1["required checks"]

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[opencode-agent]

OpenCode Review Overview

• Head SHA: 33c59adc50fa53f59a8eb9566485281f3a1fd5d0
• Workflow run: 29653645418
• Workflow attempt: 1
• Gate result: REQUEST_CHANGES (approval step)

Pull request overview

OpenCode cannot approve yet because required coverage evidence did not pass.

Review outcome

1. HIGH .github/workflows/opencode-review.yml:1 - Coverage evidence did not prove required test/docstring evidence

• Problem: The required coverage-evidence job result was failure, so OpenCode cannot establish approval sufficiency for this head.

• Root cause: Automated approval is only valid when the same-head coverage-evidence job proves supported repository test suites passed and configured docstring gates passed or were advisory, or reports not applicable because no supported source files or package manifests exist. Missing, failed, skipped, unavailable, or unsupported-tooling test evidence is a blocker.

• Fix: Install or configure the repository test/docstring evidence tooling when source files or package manifests exist, rerun the current-head coverage-evidence job, and approve only after it reports success with required evidence or explicit no-source not-applicable evidence.

• Regression test: Keep the approval branch checking needs.coverage-evidence.result == success before posting APPROVE, and publish REQUEST_CHANGES when coverage-evidence blocker states such as cancelled, skipped, failed, unsupported-tooling, or below-100 evidence are present.

• Result: REQUEST_CHANGES

• Reason: coverage-evidence result was failure, so required test/docstring evidence was not proven for current head 33c59adc50fa53f59a8eb9566485281f3a1fd5d0.

• Head SHA: 33c59adc50fa53f59a8eb9566485281f3a1fd5d0

• Workflow run: 29653645418

• Workflow attempt: 1

Coverage evidence

Coverage Decision

• Result: FAIL
• Test evidence: not proven passing
• Docstring evidence: not proven passing when configured
• Failure count: 1

Changed-File Evidence Map

flowchart LR
  PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
  Evidence --> S1["Changed file (2 files)"]
  S1 --> I1["repository behavior"]
  I1 --> R1["Review risk: Changed file (2 files)"]
  R1 --> V1["required checks"]

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