MAP Protocol
Summary
MAP Protocol is a cross-chain omnichain infrastructure project founded in 2019, issuing the MAPO token and operating the Butter Bridge for cross-chain asset transfers. On May 21, 2026, an attacker exploited an abi.encodePacked hash-collision vulnerability in Butter Bridge V3.1's retry-message path, minting approximately 1 quadrillion MAPO tokens — roughly 4.8 million times the legitimate circulating supply — causing a 96% token price collapse and extracting approximately $290,000 in combined ETH and liquidity. MAP Protocol subsequently paused all bridge operations and announced plans to patch, audit, and redeploy the bridge infrastructure.
Connected Entities
5 entities- Blockaid→associated with→MAP Protocol(85%)
- PeckShield→associated with→MAP Protocol(85%)
- ButterNetwork→subsidiary of→MAP Protocol(80%)
- Uniswap→associated with→MAP Protocol(70%)
Timeline(7 events)
2019-07-01
MAP Protocol founded in summer 2019 with mission to build cross-chain peer-to-peer payment infrastructure.
MAP Protocol Developer Docs / Official Website2021-01-01
MAP Protocol v2.0 development begins following expansion of the team; introduces MAP Relay Chain, Messengers, Light-clients, and Vaults.
MAP Protocol History Documentation2026-05-21
Attacker exploits abi.encodePacked hash-collision vulnerability in Butter Bridge V3.1 OmniServiceProxy contract on Ethereum and BNB Chain, minting approximately 1 quadrillion MAPO tokens. Exploit transaction: 0x31e56b4737649e0acdb0ebb4eca44d16aeca25f60c022cbde85f092bde27664a. Attacker wallet: 0x40592025392BD7d7463711c6E82Ed34241B64279.
Live Bitcoin News / BeInCrypto2026-05-21
Attacker converts approximately 1 billion MAPO tokens into roughly 52.2 ETH (~$110,000) and withdraws approximately $180,000 in Uniswap liquidity, for combined proceeds of approximately $290,000. MAPO price collapses approximately 96% from ~$0.003 to ~$0.0001.
Crypto Times / Crypto Briefing2026-05-21
Security firm Blockaid first flags the exploit. PeckShield subsequently confirms and traces vulnerability to Butter Bridge V3.1 OmniServiceProxy contract. MAP Protocol pauses MAPO ERC-20 to mainnet bridge and suspends ButterSwap operations.
Crypto Briefing / BeInCrypto2026-05-21
ButterNetwork confirms vulnerability is at the Butter contract layer and states: 'Patch, audit, and redeployment are in progress.' MAP Protocol warns users against trading MAPO on Uniswap.
Crypto Times2026-05-21
PeckShield identifies this as part of a broader wave of eight bridge exploits in May 2026 totaling $328.6 million in cumulative losses across the DeFi ecosystem.
Bitcoin.com NewsDecision Log
- hash: 64MDFtEFNjwuCtcuzRcuU6HDxwNWiCkLvxw3m3xEkzcv
This investigation is cryptographically anchored to the Solana blockchain and source URLs are archived via the Internet Archive.
model: claude-code-investigator
generated: 5/25/2026, 6:02:21 PM
last updated: 5/25/2026, 6:02:39 PM
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