Aave 分叉清算災難：有缺陷的門檻變化引發大量 ETH 頭寸爆倉

最近，Blast 網路上的 Aave 分叉 Pac Finance 發生了一起事件，由於錯誤的閾值更改，導致價值超過 2600 萬美元的用戶頭寸被清算。在 Coinbase 的第 2 層鏈 Blast 上運行的 Aave 分叉在嘗試調整其貸款價值（LTV）參數時無意中降低了其清算閾值。結果是平台上以太坊抵押（ETH）部位被徹底清除。 Pac Finance 已承認這一錯誤，並正在製定一項緩解該問題的計劃，強調協議衍生公司對軟體和參數有深入了解的重要性，以避免此類事故的發生。

Aave Fork Liquidation Catastrophe: Exploiting an Erroneous Threshold Change

Aave 叉清算災難：利用錯誤的門檻變化

In a glaring oversight, a fork of the renowned decentralized finance (DeFi) lending protocol Aave, operating on Coinbase's layer-2 Blast network, inadvertently altered its liquidation threshold, triggering a catastrophic liquidation of Ether-collateralized (ETH) positions.

在一次明顯的疏忽中，在Coinbase 的第2 層Blast 網路上運行的著名去中心化金融(DeFi) 借貸協議Aave 的一個分叉無意中改變了其清算閾值，引發了以太坊抵押(ETH) 頭寸的災難性清算。

The Devastating Sweep

毀滅性的橫掃

On April 11, Pac Finance, as the Aave iteration on Blast is known, attempted to modify its loan-to-value (LTV) parameters. However, instead of achieving the intended outcome, the erroneous change lowered the liquidation threshold, unsuspectedly setting the stage for a mass liquidation of ETH-collateralized positions.

4 月 11 日，Pac Finance（即 Blast 上的 Aave 迭代）嘗試修改其貸款價值比 (LTV) 參數。然而，錯誤的改變並沒有達到預期的結果，反而降低了清算門檻，毫無疑問地為 ETH 抵押部位的大規模清算奠定了基礎。

According to Will Sheehan, Founder of block explorer Parsec, the Aave fork incident on Blast resulted in a staggering loss of up to $24 million for one single user. On-chain analysis further revealed substantial losses for participants in the form of ezETH denominations, totaling thousands of dollars.

區塊瀏覽器 Parsec 創辦人 Will Sheehan 表示，Blast 上的 Aave 分叉事件導致單一用戶損失高達 2,400 萬美元。鏈上分析進一步顯示，ezETH 面額的參與者遭受了巨額損失，總計數千美元。

Mea Culpa: Pac Finance Acknowledges the Blunder

Mea Culpa：Pac Finance 承認錯誤

Hours after the issue was brought to light, Pac Finance admitted the mistake, confirming that impacted users had been contacted. The team also announced that a plan to rectify the error was underway.

在問題曝光數小時後，Pac Finance 承認了這一錯誤，並確認已聯繫受影響的用戶。該團隊還宣布正在製定糾正錯誤的計劃。

In a statement, the Pac Finance team explained, "In our effort to adjust the LTV, we tasked a smart contract engineer to implement the necessary changes. However, it was discovered that the liquidation threshold was unexpectedly altered without prior notification to our team, leading to the current issue."

Pac Finance 團隊在一份聲明中解釋說：「在我們努力調整LTV 的過程中，我們指派了一名智能合約工程師來實施必要的更改。然而，我們發現清算閾值在沒有事先通知我們團隊的情況下被意外更改，導致當前的問題。”

Community Engagement and Governance

社區參與與治理

To prevent future mishaps, Pac Finance pledged to establish a community forum dedicated to discussing future upgrades and alterations to its DeFi lending protocol. Additionally, the team announced plans to deploy a governance contract, reinforcing transparency and fostering user trust.

為了防止未來發生意外，Pac Finance 承諾建立一個社群論壇，專門討論其 DeFi 借貸協議的未來升級和變更。此外，該團隊還宣布計劃部署治理合約，以增強透明度並培養用戶信任。

Protocol Spin-Offs: A Cautionary Tale

協議衍生產品：一個警世故事

Stani Kulechov, Founder of blockchain developer Avara, the parent company behind Aave's project, highlighted the incident as a sobering reminder of potential pitfalls associated with protocol spin-offs.

區塊鏈開發商 Avara（Aave 專案背後的母公司）的創始人 Stani Kulechov 強調，這起事件發人深省，提醒人們注意與協議衍生相關的潛在陷阱。

"A fundamental problem with forking code is the lack of in-depth knowledge of the software and the parameters," Kulechov observed.

「分叉程式碼的一個根本問題是缺乏對軟體和參數的深入了解，」Kulechov 觀察到。

Lending: A DeFi Powerhouse

借貸：DeFi 強國

The lending sector remains a driving force in DeFi, enabling users to borrow and contribute liquidity to the flourishing cryptocurrency ecosystem. DefiLlama estimates that lending protocols currently hold approximately $35 billion in total value locked (TVL).

借貸產業仍然是 DeFi 的驅動力，使用戶能夠借貸並向蓬勃發展的加密貨幣生態系統提供流動性。 DefiLlama 估計，借貸協議目前鎖定的總價值 (TVL) 約為 350 億美元。

Aave stands as the undisputed leader in this market, boasting $11.5 billion in TVL and a presence across 12 chains, including Ethereum, Arbitrum, Polygon, Optimism, Avalanche, Gnosis, Base, Metis, Binance Smart Chain, Scroll, Fantom, and Harmony. Notably, Aave has also launched its stablecoin, GHO, to rival Maker's DAI token on Ethereum's blockchain.

Aave 是該市場無可爭議的領導者，擁有115 億美元的TVL，並在12 條鏈上開展業務，包括以太坊、Arbitrum、Polygon、Optimism、Avalanche、Gnosis、Base、Metis、Binance Smart Chain、Scroll 、Fantom 和Harmony。值得注意的是，Aave 還推出了其穩定幣 GHO，以與以太坊區塊鏈上的 Maker 的 DAI 代幣競爭。

A Call for Vigilance

呼籲保持警惕

The Aave fork liquidation catastrophe serves as a stark reminder of the importance of meticulous code review and comprehensive risk management practices in the rapidly evolving DeFi landscape. As protocol spin-offs continue to proliferate, a heightened level of due diligence and community engagement is imperative to minimize the likelihood of similar incidents in the future.

Aave 分叉清算災難清楚地提醒我們，在快速發展的 DeFi 領域，細緻的程式碼審查和全面的風險管理實踐的重要性。隨著協議衍生性商品不斷激增，必須加強盡職調查和社區參與，以最大限度地減少未來發生類似事件的可能性。