prototype-pollution

What problem does it solve?

Protects code from prototype pollution by detecting and mitigating unsafe patterns such as deep merges and dynamic property assignment that can modify the global Object prototype.

Core Features & Use Cases

• Detects dangerous patterns like proto and constructor pollution in deep merges, clones, and dynamic property assignments.
• Recommends safe data structures (e.g., Object.create(null)) and guarded merging strategies to prevent prototype pollution.
• Use cases include secure library development, code review, and input validation in web services.

Quick Start

Identify and fix prototype-pollution risks by filtering dangerous keys and using safe merging patterns.