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🛡️ Sentinel: [CRITICAL] Fix command injection in exec calls - #35

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sentinel-fix-command-injection-3022194816928871394
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sentinel-fix-command-injection-3022194816928871394

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@connerkup

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🚨 Severity: CRITICAL
💡 Vulnerability: Command injection risk due to string-based commands passed to execSync().
🎯 Impact: Attackers could inject arbitrary shell commands if tempFile or script paths contained malicious input.
🔧 Fix: Replaced execSync with execFileSync and utilized process.execPath to explicitly invoke the Node.js executable while passing arguments as an array.
✅ Verification: Ran npm run test and npm run lint. Ensure all tests still pass and child process arguments are correctly parsed.


PR created automatically by Jules for task 3022194816928871394 started by @connerkup

Replaced `execSync` with `execFileSync` to avoid shell/command injection risks. Used `process.execPath` and array-based arguments to safely execute scripts. Updated the `reconcile.ts` and `loop.test.ts` files to securely spawn child processes.

Co-authored-by: connerkup <72580335+connerkup@users.noreply.github.com>
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