MAP Protocol’s Butter Bridge suffered a extreme exploit on Could 20, 2026, with attackers minting 1,000,000,000,000,000 MAPO tokens, roughly 4.8 million occasions the reputable circulating provide of roughly 208 million.
The MAP Protocol token has fallen over practically 30% within the instant aftermath.
MAP Protocol Hit by 1 Quadrillion Token Mint
Safety companies PeckShield raised instant alarms, highlighting a vulnerability in Butter Bridge V3.1’s OmniServiceProxy contract that allowed unauthorized minting on Ethereum and BSC.
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The attacker triggered the mint through a spoofed cross-chain message on the Butter Bridge, directing 1 quadrillion MAPO from the zero tackle to pockets tackle 0x40592025392BD7d7463711c6E82Ed34241B64279.
On-chain knowledge exhibits the exploiter swapped parts of the pretend provide, extracting roughly 52.2 ETH (~$110,000) and pulling over $180,000 in liquidity from Uniswap swimming pools earlier than the worth collapsed.
A lot of the inflated tokens stay within the attacker’s pockets.
This incident provides to a troubling 2026 pattern: PeckShield has tracked a number of bridge exploits draining a whole lot of thousands and thousands throughout DeFi this yr.
Market Influence: MAPO Worth Crashes
MAPO, the native token of the Bitcoin Layer-2 and omnichain interoperability undertaking, traded round $0.003 previous to the assault. The huge dilution triggered sharp sell-offs and liquidity evaporation.
As of this writing, MAPO traded for $0.001558, down nearly 30% following the incident.
Holders and liquidity suppliers confronted instant losses as buying and selling pairs destabilized.
MAP Protocol positions itself as a safe infrastructure for BTC, stablecoins, and tokenized property utilizing gentle purchasers and MPC-based verification.
The bridge flaw uncovered gaps in message validation regardless of these safeguards.
The undertaking crew has not but issued a proper assertion on mitigation steps, akin to contract pauses, token blacklisting, or provide changes.
Traders ought to keep away from interacting with MAPO swimming pools or the affected bridges till official updates emerge.
This occasion highlights persistent dangers in cross-chain infrastructure. As bridge exploits proceed in 2026, customers and protocols should prioritize audited verification layers and speedy response mechanisms.
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