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🛡️ Sentinel: [CRITICAL] Fix hardcoded admin email vulnerability - #402

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fix/auth-hardcoded-admin-vulnerability-16800989899398677092
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🛡️ Sentinel: [CRITICAL] Fix hardcoded admin email vulnerability#402
criptogus wants to merge 1 commit into
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fix/auth-hardcoded-admin-vulnerability-16800989899398677092

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@criptogus

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This PR addresses a critical security vulnerability where the email gustavo.caetano@gmail.com was hardcoded to have administrator privileges.

Changes:

  1. Modified backend/src/middleware/auth.ts to remove the hardcoded email from the defaultAdminEmails list. Admin access is now exclusively determined by the ADMIN_EMAILS environment variable.
  2. Added a new test file backend/src/tests/auth-middleware.test.ts that:
    • Reproduces the issue (verifying the hardcoded access is gone).
    • Verifies that access is denied by default.
    • Verifies that access is granted when the email is present in the ADMIN_EMAILS environment variable.
  3. Updated .Jules/sentinel.md with the finding and resolution.

Verification:

  • Ran cd backend && npx jest src/tests/auth-middleware.test.ts --config jest.config.cjs and confirmed all tests pass.
  • Ran cd backend && npx jest src/tests/auth-timing.test.ts --config jest.config.cjs to ensure no regression in existing auth tests.

PR created automatically by Jules for task 16800989899398677092 started by @criptogus

- Removed hardcoded 'gustavo.caetano@gmail.com' from default admin list in `backend/src/middleware/auth.ts`
- Added `backend/src/tests/auth-middleware.test.ts` to verify access control relies solely on environment variables
- Updated security journal in `.Jules/sentinel.md`

This fixes a critical vulnerability where a specific email address was granted admin privileges regardless of configuration. Access is now controlled strictly via the `ADMIN_EMAILS` environment variable.

Co-authored-by: criptogus <128640021+criptogus@users.noreply.github.com>
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