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DeFi exploit wave 2026Update 17 of 24
Summer Finance $6M Vault Exploit

Summer Finance Loses $6M in Vault Exploit; Protocol Suspends All Vaults

Perp DEXJul 7, 2026

A relentless wave of DeFi exploits—spanning smart contracts, bridges, oracles, and MEV bots—is draining hundreds of millions and pushing 2026 toward record hack losses.

Summer Finance's Lazy Summer Protocol suffered an active vulnerability resulting in approximately $6 million in losses, prompting the team to suspend all vaults and set deposit caps to zero. The exploit was attributed to a cross-chain vulnerability in the vault infrastructure.

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