Balancer was attacked by a Hacker, what is the core issue?

After in-depth technical analysis, the vulnerability is likely hidden in the rate cache update mechanism of the Composable Stable Pool.

The attacker's method is very clever: in a single transaction, they first manipulate the price parameters, and then use this tampered price to complete arbitrage. The entire process is seamless and hard to defend against.

This type of attack once again exposes the vulnerabilities of DeFi protocols in price oracles and caching mechanisms.