# Security Policy

## Supported Versions

LogXide follows a security-first approach. We provide security updates for the following versions:

| Version | Supported          |
| ------- | ------------------ |
| 0.1.x   | :white_check_mark: |
| < 0.1   | :x:                |

## Reporting a Vulnerability

We take security vulnerabilities seriously. If you discover a security vulnerability in LogXide, please report it privately to allow us to fix it before public disclosure.

### How to Report

**Please do NOT report security vulnerabilities through public GitHub issues.**

Instead, please send an email to: **security@logxide.example.com**

Include the following information:

1. **Type of vulnerability**: Brief description of the vulnerability type
2. **Location**: Where in the codebase the vulnerability exists
3. **Impact**: Potential impact and severity
4. **Reproduction**: Step-by-step instructions to reproduce the issue
5. **Fix suggestion**: If you have ideas for fixing the vulnerability
6. **Contact**: Your preferred contact method for follow-up

### What to Expect

- **Acknowledgment**: We will acknowledge receipt of your report within 48 hours
- **Assessment**: We will assess the vulnerability and determine its severity
- **Timeline**: We will provide an estimated timeline for fixing the vulnerability
- **Updates**: We will keep you informed of progress throughout the process
- **Credit**: We will credit you for the discovery (unless you prefer to remain anonymous)

### Response Timeline

- **Critical vulnerabilities**: Fix within 7 days
- **High vulnerabilities**: Fix within 14 days
- **Medium vulnerabilities**: Fix within 30 days
- **Low vulnerabilities**: Fix within 60 days

## Security Considerations

### LogXide Design Principles

LogXide is designed with security in mind:

1. **Memory Safety**: Written in Rust to prevent memory-related vulnerabilities
2. **Input Validation**: All inputs are validated and sanitized
3. **Minimal Dependencies**: Limited external dependencies to reduce attack surface
4. **Secure Defaults**: Secure configuration by default
5. **No Network Access**: Core logging functionality doesn't require network access

### Potential Security Concerns

While LogXide is designed to be secure, be aware of these potential concerns:

#### 1. Log Injection
- **Risk**: Malicious input in log messages could lead to log injection attacks
- **Mitigation**: Validate and sanitize all log inputs
- **Example**:
  ```python
  # Bad: Direct user input
  logger.info(f"User logged in: {user_input}")

  # Good: Sanitized input
  logger.info("User logged in: %s", sanitize(user_input))
  ```

#### 2. Information Disclosure
- **Risk**: Sensitive information in log messages could be exposed
- **Mitigation**: Avoid logging sensitive data like passwords, API keys, personal information
- **Example**:
  ```python
  # Bad: Logging sensitive data
  logger.info(f"Password: {password}")

  # Good: Logging without sensitive data
  logger.info("Authentication successful for user: %s", username)
  ```

#### 3. Log File Permissions
- **Risk**: Log files with incorrect permissions could expose sensitive information
- **Mitigation**: Ensure log files have appropriate permissions (e.g., 600 or 640)
- **Note**: LogXide doesn't manage file permissions directly; this is the responsibility of the application

#### 4. Log Flooding
- **Risk**: Excessive logging could lead to disk space exhaustion or performance issues
- **Mitigation**: Implement rate limiting and log rotation
- **Example**:
  ```python
  # Be careful with loops and error conditions
  for item in large_list:
      try:
          process(item)
      except Exception:
          logger.error("Failed to process item: %s", item)  # Could flood logs
  ```

#### 5. Format String Vulnerabilities
- **Risk**: User-controlled format strings could lead to vulnerabilities
- **Mitigation**: Never use user input directly as format strings
- **Example**:
  ```python
  # Bad: User-controlled format string
  logger.info(user_format_string % data)

  # Good: Safe logging
  logger.info("User action: %s", user_action)
  ```

### Best Practices

#### 1. Input Sanitization
```python
import re

def sanitize_log_input(input_string):
    """Remove potentially dangerous characters from log input."""
    # Remove control characters and non-printable characters
    return re.sub(r'[\x00-\x1f\x7f-\x9f]', '', str(input_string))

# Usage
logger.info("User input: %s", sanitize_log_input(user_input))
```

#### 2. Structured Logging
```python
# Use structured logging to separate data from format
logger.info("User action", extra={
    'user_id': user_id,
    'action': action,
    'timestamp': timestamp
})
```

#### 3. Log Level Management
```python
# Use appropriate log levels
logger.debug("Detailed debugging info")      # Development only
logger.info("General information")           # Production safe
logger.warning("Warning condition")          # Attention needed
logger.error("Error condition")              # Requires action
logger.critical("Critical condition")        # Immediate action required
```

#### 4. Sensitive Data Handling
```python
# Create a filter to remove sensitive data
class SensitiveDataFilter:
    def filter(self, record):
        # Remove or mask sensitive data
        if hasattr(record, 'msg'):
            record.msg = re.sub(r'password=\w+', 'password=***', record.msg)
        return True

# Apply filter to logger
logger.addFilter(SensitiveDataFilter())
```

### Security Testing

LogXide includes security-focused tests:

1. **Input Validation Tests**: Test handling of malicious inputs
2. **Memory Safety Tests**: Rust's memory safety prevents many vulnerabilities
3. **Fuzzing**: Regular fuzzing to find edge cases
4. **Static Analysis**: Code analysis to identify potential issues

### Dependency Security

LogXide minimizes external dependencies:

- **Runtime Dependencies**: None (only Python standard library)
- **Build Dependencies**: Carefully vetted (PyO3, Tokio, Chrono)
- **Security Audits**: Regular security audits of dependencies

### Vulnerability Disclosure

When we fix security vulnerabilities:

1. **Private Fix**: We develop and test the fix privately
2. **Coordinated Disclosure**: We coordinate with the reporter
3. **Public Advisory**: We publish a security advisory
4. **CVE Assignment**: We request CVE assignment if applicable
5. **Patch Release**: We release a patch with the fix

## Security Updates

### Notification Methods

Stay informed about security updates:

- **GitHub Security Advisories**: Watch our repository for security advisories
- **Mailing List**: Subscribe to our security mailing list
- **RSS Feed**: Monitor our security RSS feed
- **Package Managers**: Keep your package manager updated

### Automatic Updates

For automatic security updates:

```bash
# Use dependabot or similar tools
pip install --upgrade logxide

# Or use pipenv
pipenv update logxide

# Or use poetry
poetry update logxide
```

## Contact

For security-related questions or concerns:

- **Email**: security@logxide.example.com
- **Response Time**: 48 hours for acknowledgment
- **PGP Key**: Available on request for encrypted communication

## Security Hall of Fame

We thank the following security researchers for their contributions:

- [Name] - [Vulnerability] - [Date]
- [Name] - [Vulnerability] - [Date]

(We will add contributors as we receive security reports)

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**Remember**: Security is a shared responsibility. While LogXide is designed to be secure, proper usage and deployment practices are essential for maintaining security in your applications.
