variant-analysis

Variant analysis finds similar code vulnerabilities by matching known patterns and locating instances across repositories. You provide a root-cause description, generalize the vulnerable pattern step by step, and use tools like ripgrep, Semgrep, or CodeQL to surface exact and variant matches for triage.

To generalize a vulnerability pattern for code review, start with an exact match from the initial issue and iteratively abstract one element at a time. This pattern-matching approach helps surface similar vulnerabilities across multiple languages while validating results during each step.

Yes, variant analysis supports using Semgrep and CodeQL for scalable detection and triage. These tools help identify and classify code vulnerabilities by matching known security patterns across codebases, enabling guided analysis for security audits and variant-aware query development.

Yes, a clearly defined root-cause description is required to start variant analysis. This initial vulnerability description provides the exact pattern needed to begin stepwise abstraction, allowing you to expand the search across modules to identify variant paths and craft robust fixes.

Cross-repo triage analyzes multiple files and languages to surface similar vulnerabilities during security audits. By cataloging matched patterns and extending searches across branches and repositories, it aids systematic code reviews and helps track variant issues throughout the codebase.