Skip to content

Security: SergeiKriukov/MarkdownToAttributedString

Security

SECURITY.md

Security Policy

Supported Versions

We provide security updates for the following versions:

Version Supported
1.0.x
< 1.0

Reporting a Vulnerability

If you discover a security vulnerability in MarkdownToAttributedString, please report it responsibly:

How to Report

  1. Do NOT create a public GitHub issue
  2. Email the maintainer directly: GitHub Profile
  3. Include detailed information about the vulnerability
  4. Provide steps to reproduce the issue
  5. Wait for a response before public disclosure

What to Include

When reporting a security vulnerability, please include:

  • Description: Clear description of the vulnerability
  • Impact: Potential impact of the vulnerability
  • Steps to reproduce: Detailed steps to reproduce the issue
  • Environment: OS version, Swift version, Xcode version
  • Code sample: Minimal code that demonstrates the issue
  • Proposed fix: If you have a suggested fix

Response Timeline

  • Initial response: Within 48 hours
  • Status update: Within 1 week
  • Fix release: Within 30 days (for critical issues)

Disclosure Process

  1. Report received and acknowledged
  2. Investigation and verification
  3. Fix development and testing
  4. Release of patched version
  5. Public disclosure (if appropriate)

Security Considerations

Input Validation

MarkdownToAttributedString processes user input and should be used with caution:

  • Validate input before processing
  • Sanitize content from untrusted sources
  • Limit input size to prevent memory issues
  • Handle errors gracefully

Memory Safety

The library is designed with memory safety in mind:

  • Automatic memory management with Swift's ARC
  • No manual memory allocation
  • Safe string handling
  • Bounds checking for array access

Platform Security

Consider platform-specific security features:

  • iOS: App Sandbox restrictions
  • macOS: File system permissions
  • tvOS: Limited file system access
  • watchOS: Memory constraints

Best Practices

Safe Usage

// Validate input before processing
func safeMarkdownConversion(_ input: String) -> NSAttributedString? {
    // Check input length
    guard input.count < 10000 else { return nil }
    
    // Check for malicious content
    guard !input.contains("<script>") else { return nil }
    
    // Process safely
    return input.toAttributedString()
}

Error Handling

do {
    let attributedString = markdown.toAttributedString()
    // Use the result safely
} catch {
    // Handle errors gracefully
    print("Conversion failed: \(error)")
}

Resource Management

// Limit resource usage
func processLargeDocument(_ markdown: String) {
    // Process in chunks for large documents
    let chunks = markdown.split(separator: "\n")
    for chunk in chunks {
        let result = String(chunk).toAttributedString()
        // Process chunk
    }
}

Known Security Issues

None Currently Known

No security vulnerabilities are currently known in MarkdownToAttributedString.

Past Issues

None reported to date.

Security Updates

Security updates will be released as needed:

  • Critical issues: Immediate patch release
  • High severity: Patch release within 1 week
  • Medium severity: Next minor release
  • Low severity: Next major release

Contact

For security-related questions or reports:

Acknowledgments

We thank the security community for responsible disclosure and helping keep MarkdownToAttributedString secure.

License

This security policy is part of the MarkdownToAttributedString project and is subject to the same MIT License.

There aren't any published security advisories