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Chaos Labs:Aave 約 2700 萬美元清算事件系 CAPO 風險預言機配置問題所致

2026-03-11 09:20:03

ChainCatcher 消息,据 Chaos Labs 發佈的分析報告,近期 Aave 發生的約 2700 萬美元清算事件系 CAPO 風險預言機配置問題所致。

根本原因在於智能合約層面的更新約束不一致:snapshotRatio 參數受限於每 3 天僅能增長 3% 的鏈上約束,無法從約 1.1572 直接更新至目標值約 1.2282,只能增至約 1.1919;而 snapshotTimestamp 卻成功更新至 7 天前的時間戳。這種比率與時間戳的錯位導致 CAPO 計算出的匯率上限(約 1.1939)低於實際市場匯率約 2.85%,觸發了約 10938 枚 wstETH 的清算。事件中協議未產生壞帳。

Chaos Labs 與 BGD Labs 已立即將受影響實例的 wstETH 借款上限降至 1,並通過 Risk Steward 手動對齊參數恢復匯率。通過 BuilderNet 已收回 141.5 ETH,將用於補償受影響用戶,剩餘部分由 Aave 財庫覆蓋,預計需要由 DAO 臨時補償的金額不超過 345 ETH。

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