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GoPlus:僅換回 1.4 萬美元 LIT 用戶因路由選擇低流動性池被 backrunner 套利

2026-07-06 15:00:55

ChainCatcher 消息,安全分析平台 GoPlus 針對「某用戶在 Uniswap 上將約 1126 枚 ETH(約 201 萬美元)兌換為 5776 枚 LIT(約 1.4 萬美元),損失近 200 萬美元」事件發推表示,該事件核心原因並非三明治攻擊,而是同一区塊 backrunner 套利。路由合約將大量 WETH 打入了一個流動性極差的 AVAIL/WETH 交易池,導致用戶以嚴重偏離市場價格(約為合理價格的 120 倍)買入 AVAIL。隨後同一区塊內,backrunner 用極少量真實價格的 AVAIL 反向交易該池,抽走約 1072 枚 WETH,並將大部分(約 1018 枚 ETH)作為 builder payment 支付給 Titan Builder。

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