Aave 分叉清算灾难：有缺陷的阈值变化引发大量 ETH 头寸爆仓

最近，Blast 网络上的 Aave 分叉 Pac Finance 发生了一起事件，由于错误的阈值更改，导致价值超过 2600 万美元的用户头寸被清算。在 Coinbase 的第 2 层链 Blast 上运行的 Aave 分叉在尝试调整其贷款价值（LTV）参数时无意中降低了其清算阈值。结果是平台上以太坊抵押（ETH）头寸被彻底清空。 Pac Finance 已承认这一错误，并正在制定一项缓解该问题的计划，强调协议衍生公司对软件和参数有深入了解的重要性，以避免此类事故的发生。

Aave Fork Liquidation Catastrophe: Exploiting an Erroneous Threshold Change

Aave 叉清算灾难：利用错误的阈值变化

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.

在一次明显的疏忽中，在 Coinbase 的第 2 层 Blast 网络上运行的著名去中心化金融 (DeFi) 借贷协议 Aave 的一个分叉无意中改变了其清算阈值，引发了以太坊抵押 (ETH) 头寸的灾难性清算。

The Devastating Sweep

毁灭性的横扫

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）尝试修改其贷款价值比 (LTV) 参数。然而，错误的改变并没有达到预期的结果，反而降低了清算门槛，毫无疑问地为 ETH 抵押头寸的大规模清算奠定了基础。

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.

区块浏览器 Parsec 创始人 Will Sheehan 表示，Blast 上的 Aave 分叉事件导致单个用户损失高达 2400 万美元。链上分析进一步显示，ezETH 面额的参与者遭受了巨额损失，总计数千美元。

Mea Culpa: Pac Finance Acknowledges the Blunder

Mea Culpa：Pac Finance 承认错误

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.

问题曝光数小时后，Pac Finance 承认了这一错误，并确认已联系受影响的用户。该团队还宣布正在制定纠正错误的计划。

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 团队在一份声明中解释说：“在我们努力调整 LTV 的过程中，我们指派了一名智能合约工程师来实施必要的更改。然而，我们发现清算阈值在没有事先通知我们团队的情况下被意外更改，导致当前的问题。”

Community Engagement and Governance

社区参与和治理

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.

为了防止未来发生意外，Pac Finance 承诺建立一个社区论坛，专门讨论其 DeFi 借贷协议的未来升级和变更。此外，该团队还宣布计划部署治理合约，以增强透明度并培养用户信任。

Protocol Spin-Offs: A Cautionary Tale

协议衍生产品：一个警示故事

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.

区块链开发商 Avara（Aave 项目背后的母公司）的创始人 Stani Kulechov 强调，这一事件发人深省，提醒人们注意与协议衍生相关的潜在陷阱。

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

“分叉代码的一个根本问题是缺乏对软件和参数的深入了解，”Kulechov 观察到。

Lending: A DeFi Powerhouse

借贷：DeFi 强国

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).

借贷行业仍然是 DeFi 的驱动力，使用户能够借贷并向蓬勃发展的加密货币生态系统提供流动性。 DefiLlama 估计，借贷协议目前锁定的总价值 (TVL) 约为 350 亿美元。

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 是该市场无可争议的领导者，拥有 115 亿美元的 TVL，并在 12 条链上开展业务，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 还推出了其稳定币 GHO，以与以太坊区块链上的 Maker 的 DAI 代币竞争。

A Call for Vigilance

呼吁保持警惕

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 分叉清算灾难清楚地提醒我们，在快速发展的 DeFi 领域，细致的代码审查和全面的风险管理实践的重要性。随着协议衍生品不断激增，必须加强尽职调查和社区参与，以最大限度地减少未来发生类似事件的可能性。