Security Code Review

Perform a comprehensive security audit of the code changes.

Scope

Review changes from: !git diff --name-only HEAD~1 or files specified in $ARGUMENTS

Security Checklist

1. Injection Vulnerabilities

• SQL Injection: Verify all database queries use parameterized queries (sql template literal)
• Command Injection: Check for unsanitized input in shell commands or child processes
• XSS: Validate output encoding in API responses and templates
• NoSQL Injection: Check Redis and other NoSQL operations

2. Authentication & Authorization

• Authentication bypass: Verify auth middleware is applied to protected routes
• Authorization checks: Confirm permission checks match the action's sensitivity
• Session management: Check for session fixation, timeout issues
• JWT handling: Verify token validation, expiration, and signature checks

3. Data Exposure

• Sensitive data in logs: Check for PII, tokens, or credentials in log statements
• Error messages: Ensure errors don't leak internal details
• API responses: Verify only necessary fields are returned
• File paths: Check for path traversal vulnerabilities

4. Input Validation

• Schema validation: Verify AJV validators cover all inputs
• Type coercion: Check for unexpected type conversions
• Size limits: Verify file upload and request body limits
• Rate limiting: Confirm rate limits on sensitive endpoints

5. Dependencies

• New dependencies: Review any new npm/deno packages for known vulnerabilities
• Outdated packages: Flag significantly outdated security-critical packages

6. Secrets Management

• Hardcoded secrets: Check for API keys, passwords, tokens in code
• Environment variables: Verify secrets are loaded from environment
• Talisman compliance: Ensure changes won't trigger secret detection

7. Deno-Specific

• Permissions: Check --allow-* flags aren't overly permissive
• Import sources: Verify external imports are from trusted sources (jsr, npm)

Output Format

Provide a structured report:

## Security Review Summary

**Risk Level**: [LOW | MEDIUM | HIGH | CRITICAL]
**Files Reviewed**: X files

### Findings

#### [SEVERITY] Finding Title
- **File**: path/to/file.ts:line
- **Issue**: Description of the vulnerability
- **Impact**: What could happen if exploited
- **Recommendation**: How to fix it

### Approved Changes
- List of changes that passed security review

### Action Required
- [ ] Fix critical/high issues before merge
- [ ] Address medium issues in follow-up
- [ ] Low issues can be tracked as tech debt

Invocation

/check-security                    # Review uncommitted changes
/check-security src/pdc/services/  # Review specific directory
/check-security HEAD~3..HEAD       # Review last 3 commits