Security context

What an agent needs to avoid regressing past fixes and find the next vuln in this repo.

jeremyevans/sequel

              master @ dbd90ff
            

Fixes

CVEs

CRITICAL

Peak severity

31.3%

Coverage

Highlights

SQL Injection: 6 prior fixes. Scrutinize any change in this area.

lib/sequel/adapters/postgres.rb: most-fixed (3 issues). Treat as high-risk during review.

10 high-severity fixes in this history; regressions here are high-impact.

Recurring patterns

The bug types that recur here, drawn from past fixes, not open vulnerabilities.

SQL Injection: Database adapter methods frequently construct DDL or dynamic commands (e.g., LISTEN, NOTIFY, cursor declarations) using unquoted or unvalidated user-supplied identifiers. Ensuring that SQL identifiers are escaped via robust quoting APIs is vital.

Code Injection: Dynamic metaprogramming using string interpolation within evaluation contexts like `instance_eval` or `class_eval` creates severe remote code execution risks. Dynamic behavior should be refactored to use safe alternative primitives like `define_singleton_method` or `define_method` with argument binding.

Auth Bypass: Flaws in class inheritance handlers and plugin loading detection can leave model subclasses without intended mass-assignment protections, allowing unauthorized modification of restricted column setters.