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GoPlus:仅换回 1.4 万美元 LIT 用户因路由选择低流动性池被 backrunner 套利

2026-07-06 15:00:55

ChainCatcher 消息,安全分析平台 GoPlus 针对「某用户在 Uniswap 上将约 1126 枚 ETH(约 201 万美元)兑换为 5776 枚 LIT(约 1.4 万美元),损失近 200 万美元」事件发推表示,该事件核心原因并非三明治攻击,而是同一区块 backrunner 套利。路由合约将大量 WETH 打入了一个流动性极差的 AVAIL/WETH 交易池,导致用户以严重偏离市场价格(约为合理价格的 120 倍)买入 AVAIL。随后同一区块内,backrunner 用极少量真实价格的 AVAIL 反向交易该池,抽走约 1072 枚 WETH,并将大部分(约 1018 枚 ETH)作为 builder payment 支付给 Titan Builder。

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