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Security: codenimja/nimsync

Security

docs/SECURITY.md

Security Policy

Supported Versions

We take security seriously. The following versions of nimsync are currently supported with security updates:

Version Supported
1.0.x ✅ Yes
< 1.0.0 ❌ No

Reporting a Vulnerability

Please do not report security vulnerabilities through public GitHub issues.

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

How to Report

Option 1: GitHub Security Advisories (Preferred)

Option 2: Email

  • Send an email to the maintainer (contact info in GitHub profile)
  • Use subject line: [SECURITY] nimsync vulnerability

What to Include

Please provide:

  • A clear description of the vulnerability
  • Steps to reproduce the issue
  • Potential impact and severity assessment
  • Any suggested fixes or mitigations (if you have them)
  • Your preferred method of credit (or remain anonymous)

What to Expect

  • Acknowledgment: Within 48 hours
  • Initial Assessment: Within 7 days
  • Status Updates: At least weekly
  • Resolution Timeline: Depends on severity
    • Critical: < 7 days
    • High: < 14 days
    • Medium/Low: < 30 days

Disclosure Policy

We follow coordinated disclosure:

  1. We will work with you to understand and validate the issue
  2. We will develop and test a fix
  3. We will prepare a security advisory
  4. We will coordinate a public disclosure date with you
  5. We will release the fix and publish the advisory simultaneously
  6. We will credit you in the advisory (unless you prefer anonymity)

Security Best Practices

When using nimsync in production:

General

  • Keep Updated: Use the latest stable version
  • Monitor Advisories: Watch this repository for security updates
  • Dependency Hygiene: Keep Nim and Chronos updated
  • Review Changelog: Check breaking changes before upgrading

Runtime

  • Error Handling: Implement proper error boundaries
  • Resource Limits: Set appropriate channel buffer sizes
  • Logging: Enable structured logging for security events
  • Monitoring: Track task spawn rates and memory usage

Deployment

  • Least Privilege: Run with minimum required permissions
  • Network Isolation: Limit network access where possible
  • Input Validation: Validate all external inputs
  • Rate Limiting: Implement rate limits on public endpoints

Known Security Considerations

Memory Safety

  • nimsync uses Nim's ORC memory management
  • Lock-free algorithms use atomic operations with proper memory barriers
  • All unsafe code is carefully audited

Concurrency

  • Task cancellation is cooperative, not preemptive
  • Always set timeouts for potentially blocking operations
  • Use appropriate backpressure policies for streams

Dependencies

  • Chronos 4.0.4+ (actively maintained)
  • Nim 2.0.0+ (latest stable recommended)

Security Update Process

When a security issue is confirmed:

  1. Patch Development: Fix is developed in a private repository
  2. Testing: Comprehensive testing including security-specific tests
  3. Advisory Preparation: CVE requested if applicable
  4. Coordinated Release: Fix released with security advisory
  5. Notification: Users notified via GitHub Security Advisories

Contact

For security-related questions that are not vulnerabilities, please:


Thank you for helping keep nimsync and its users safe!

For security-related questions or concerns, please contact us at security@nimsync.dev.

There aren’t any published security advisories