🛡️ Sentinel: [CRITICAL] Fix system role privilege escalation

[ldsgroups225]

🚨 Severity: CRITICAL
💡 Vulnerability: Tenant users could escalate privileges by modifying system-level global roles through the updateRole database mutation.
🎯 Impact: Unauthorized tenants could gain system-wide administrative access or modify global default roles, compromising the multi-tenant architecture and exposing all other tenants.
🔧 Fix: Implemented an isSystemRole guard in the updateRole query that strictly throws a DatabaseError('VALIDATION_ERROR') if a tenant attempts to mutate a system role.
✅ Verification: Verified via pnpm typecheck and pnpm lint. The system correctly reads the isSystemRole property and blocks execution before the underlying db.update() operation runs.

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PR created automatically by Jules for task 6590292934345994035 started by @ldsgroups225

Summary by CodeRabbit

• Bug Fixes
  • Enhanced role management with validation that prevents updates to system roles, displaying a clear error message when such operations are attempted.

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 1bb94835-777f-4309-8490-5680de07e504

📥 Commits

Reviewing files that changed from the base of the PR and between 7e37ef8 and 9147ce7.

📒 Files selected for processing (1)

• packages/data-ops/src/queries/school-admin/roles.ts

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📝 Walkthrough

Walkthrough

The updateRole function now includes a validation guard that prevents updates to system roles by throwing a DatabaseError when role.isSystemRole is true, adding logic to block modifications before database execution.

Changes

Cohort / File(s)	Summary
System Role Update Protection packages/data-ops/src/queries/school-admin/roles.ts	Added validation guard in updateRole to throw VALIDATION_ERROR when attempting to update system roles, preventing database modification of protected roles.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Poem

A guard stands tall, both swift and keen,
System roles protected—pristine and clean,
No updates slip through this wall,
CodeRabbit hops to shield them all! 🐰

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: adding a validation guard to prevent privilege escalation via system role modification. It is specific, clear, and directly related to the critical security fix implemented in the code.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch sentinel/fix-system-role-privilege-escalation-6590292934345994035

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