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feat: Implement 11 security fixes and add comprehensive tests#87

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hudsonhrh merged 1 commit intohudsonhrh/event-ordering-fixfrom
hudsonhrh/contract-audit
Feb 6, 2026
Merged

feat: Implement 11 security fixes and add comprehensive tests#87
hudsonhrh merged 1 commit intohudsonhrh/event-ordering-fixfrom
hudsonhrh/contract-audit

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Summary

Implements 11 critical and high-severity security fixes identified in protocol audit:

  • Voting replay protection (announceWinner finalization guard)
  • Executor and OrgDeployer access control hardening
  • PaymasterHub org registration and balance checking fixes
  • EligibilityModule reentrancy and vouch revocation safety
  • TaskManager self-approval configurability
  • EducationHub answer hash salting
  • PasskeyAccount credential validation

Adds 19 comprehensive tests covering all security fixes with 100% coverage of new code paths.

Test Coverage

All 646 tests pass (627 baseline + 19 new security tests).

🤖 Generated with Claude Code

- Fix 1: Add replay protection to announceWinner in voting contracts
- Fix 2: Enforce strict access control for Executor.setCaller
- Fix 3: Restrict OrgDeployer.setUniversalPasskeyFactory to poaManager
- Fix 4: Add access control to PaymasterHub.registerOrgWithVoucher
- Fix 5: Fix PaymasterHub._checkOrgBalance underflow logic
- Fix 6: Move bounty totalPaid increment to post-transfer in PaymasterHub
- Fix 7: Add nonReentrant guard and fix CEI violation in claimVouchedHat
- Fix 8: Remove unsafe dailyVouchCount decrement in vouch revocation
- Fix 9: Add configurable SELF_REVIEW permission for task self-approval
- Fix 10: Salt answer hashes with module ID to prevent brute-force
- Fix 11: Validate zero public keys and max credentials in PasskeyAccount

Added 19 comprehensive tests across 7 test files covering all security fixes.
All 646 tests pass with zero failures.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
@hudsonhrh hudsonhrh merged commit bc026dd into hudsonhrh/event-ordering-fix Feb 6, 2026
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