Butter Bridge hacked
The Butter Bridge V3.1, part of MAP Protocol and Butter Network, was exploited due to a vulnerability in its retry message verification logic, allowing the minting of fake MAPO tokens. The attacker extracted approximately $180,000. The bridge and related swaps were paused, and a patch is in progress.
- Estimated loss
- $180,000
- Protocols
- Butter Bridge, MAP Protocol, Butter Network
- Chains
- Ethereum, BSC
- Confidence
- High
- First seen
- 20 May 2026, 00:00 UTC