How an Attacker Drained $128M from Balancer Through Rounding Error Exploitation
By: Dikla Barda, Roaman Zaikin & Oded Vanunu On November 3, 2025, Check Point Research’s blockchain monitoring systems detected a sophisticated exploit targeting Balancer V2’s ComposableStablePool contracts. The attacker exploited arithmetic precision loss in pool invariant calculations to drain $128.64 million across six blockchain networks in under 30 minutes. The attack leveraged a rounding error […] The post How an Attacker Drained $128M from Balancer Through Rounding Error Exploitation appeared first on Check Point Research .
Get stories like this every Monday
The week's most important AI news in one email. Free, unsubscribe anytime.
Score: 2.10
Engagement proxy: 0
Canonical link: https://research.checkpoint.com/2025/how-an-attacker-drained-128m-from-balancer-through-rounding-error-exploitation/