METAGRAPH is built with security as a fundamental principle. This document outlines our security practices, vulnerability reporting process, and security guarantees.

• Address Sanitizer (ASan): Detects buffer overflows, use-after-free, and memory leaks
• Undefined Behavior Sanitizer (UBsan): Catches undefined behavior at runtime
• Memory Safety Architecture: Cache-aligned structures with proper bounds checking
• Static Analysis: Comprehensive clang-tidy, Cppcheck, and PVS-Studio integration

• Reproducible Builds: Deterministic compilation with SOURCE_DATE_EPOCH
• Hardening Flags: Stack protectors, fortify source, PIE, and RELRO
• Supply Chain Security: SLSA v1.1 provenance generation
• Cryptographic Attestation: GitHub build attestations and SBOM generation

• Nuclear-Level Warnings: Maximum compiler strictness across GCC/Clang/MSVC
• Fuzzing: Continuous fuzzing with libFuzzer and AFL++
• Static Analysis: Multiple tools including Semgrep, CodeQL, and custom checks
• Dependency Scanning: Automated vulnerability detection for all dependencies

• SLSA Level 3: Supply chain integrity with cryptographic provenance
• CWE Top 25: Protection against most dangerous software weaknesses
• OWASP C/C++: Following OWASP secure coding practices
• ISO 27001: Information security management alignment

DO NOT create public GitHub issues for security vulnerabilities.

Instead, please report security vulnerabilities by emailing:

• Primary: [email protected]
• Alternative: Use GitHub's private vulnerability reporting

Please include the following information:

• Description: Clear description of the vulnerability
• Impact: Potential impact and attack scenarios
• Reproduction: Step-by-step reproduction instructions
• Environment: Operating system, compiler version, build configuration
• Proof of Concept: Code or commands demonstrating the issue

• Acknowledgment: Within 24 hours
• Initial Assessment: Within 72 hours
• Regular Updates: Every 7 days during investigation
• Resolution: Target 90 days for critical issues, 180 days for others

# Run comprehensive security test suite
./scripts/security-audit.sh

# Run fuzzing tests
cmake -DMETAGRAPH_FUZZING=ON -B build-fuzz
cmake --build build-fuzz
./build-fuzz/tests/fuzz/fuzz_graph

# Memory safety testing
cmake -DMETAGRAPH_SANITIZERS=ON -B build-asan
cmake --build build-asan
ASAN_OPTIONS="abort_on_error=1" ./build-asan/bin/METAGRAPH_unit_tests

• Input validation testing
• Buffer overflow testing
• Integer overflow testing
• Memory corruption testing
• Race condition testing
• Cryptographic implementation review

1. Memory Safety: No buffer overflows in release builds
2. Input Validation: All external inputs are validated
3. No Hardcoded Secrets: No embedded credentials or keys
4. Secure Defaults: Security-by-default configuration
5. Regular Updates: Timely security patches

1. Side-Channel Resistance: Not designed for cryptographic applications
2. Real-Time Guarantees: Performance may vary under attack
3. Physical Security: Protection against hardware attacks
4. Social Engineering: Protection against human factors

• Threat modeling for new features
• Security requirements definition
• Architecture security review

• Secure coding standards enforcement
• Peer review with security focus
• Static analysis integration

• Security test case development
• Penetration testing
• Fuzzing campaigns

• Secure build pipeline
• Cryptographic signing
• Provenance generation

• Secure Coding Guide
• Threat Model
• Security Architecture

• scripts/security-audit.sh: Comprehensive security audit
• scripts/profile.sh: Performance and security profiling
• .github/workflows/security.yml: Automated security testing

• OWASP C/C++ Security
• SEI CERT C Coding Standard
• CWE Top 25

• ✅ Zero known critical vulnerabilities
• ✅ SLSA Level 3 compliance
• ✅ 100% memory safety test coverage
• ✅ Continuous security monitoring
• ✅ Reproducible builds
• ✅ Cryptographic provenance

Last Updated: 2025-07-20 Version: 1.0.0 Contact: [email protected]