Tools Crypto Exploit Tracker exploit-0088
Exploit record
Balancer V2 Stable Pool Exploit
- Loss
- $116M
- Attack vector
- Other
- Chain
- Multichain
- Sector
- AMM
What happened
On November 3, 2025, Balancer's V2 Stable and Composable Stable v5 pool logic was exploited for about $116M across multiple deployments.
Balancer's preliminary write-up tied the attack to stable-pool rounding / upscale behaviour in EXACT_OUT swap flows combined with flash loans and BatchSwaps. Old, complex pool math was pushed into states it should never have tolerated, and the attacker extracted value faster than mitigations could contain it.
On-chain references
Sources
- YFarmX write-upyfarmx.com/balancer-hack-v2-vaults-drained-in-exploit/
On YFarmX
- Our reportingBalancer hack, V2 vaults drained in $100M exploit
One record from the Crypto Exploit Tracker, maintained by the Security Desk. Data: CSV · JSON ·RSS · CC BY 4.0 with attribution to YFarmX.Tracker updated · 15 September 2026