Cascade

Cascade is an expert-level engagement featuring a lending vault with collateral management, oracle price feeds, and a liquidation engine. Each component looks reasonable in isolation.

But the interaction between components creates emergent behavior. No single bug is exploitable on its own — you need to find multiple issues across different modules and chain them into a viable attack path.

This is the closest thing to a real-world audit you'll find on this platform.

The most devastating DeFi exploits don't come from a single obvious bug. They come from chaining subtle issues: an oracle that can be manipulated by a few basis points, a liquidation threshold that's off by one, a rounding error that compounds over iterations.

This challenge simulates that reality. Read every file. Question every assumption. Think like an attacker.