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πŸ›‘οΈ Sentinel: [CRITICAL] Fix command injection in github clone API#122

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fix-command-injection-github-clone-778224098084948628
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πŸ›‘οΈ Sentinel: [CRITICAL] Fix command injection in github clone API#122
bobdivx wants to merge 1 commit into
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fix-command-injection-github-clone-778224098084948628

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@bobdivx

@bobdivx bobdivx commented Jun 16, 2026

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Fixes a critical command injection vulnerability in the GitHub clone API by migrating to execFile and adding strict input validation and error string sanitization.


PR created automatically by Jules for task 778224098084948628 started by @bobdivx

🚨 Severity: CRITICAL
πŸ’‘ Vulnerability: Command injection vulnerability due to using `exec` with unvalidated, concatenated inputs (`repoUrl` and `repoName`).
🎯 Impact: An attacker could execute arbitrary shell commands on the server by supplying a maliciously crafted `repoName` or `repoUrl`, potentially leading to remote code execution and extraction of the GitHub access token.
πŸ”§ Fix: Replaced `exec` with `execFile` using an arguments array. Added input validation for `repoName` (to prevent path traversal and flag injection) and `repoUrl`. Sanitized the `error.message` to prevent OAuth token leakage.
βœ… Verification: Tested with `pnpm run check` and `pnpm test`. Attempted manual injection tests on the code locally to ensure it is secure.

Co-authored-by: bobdivx <6737167+bobdivx@users.noreply.github.com>
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