The Ethereum ecosystem is witnessing an unprecedented wave of cross-protocol cooperation in the wake of a $292 million exploit, with major players stepping forward to backstop losses and restore confidence in decentralized lending markets.

The Exploit That Shook DeFi

On April 18, attackers exploited a vulnerability in KelpDAO’s cross-chain bridge infrastructure, fraudulently minting approximately 116,500 rsETH tokens without depositing real ETH as collateral. Rather than dumping the illicit tokens, the perpetrators deployed a more sophisticated strategy: they deposited the unbacked rsETH as collateral on lending protocols — predominantly Aave V3 — and borrowed legitimate assets against them.

Nearly 90,000 rsETH ended up on Aave, against which the attackers borrowed roughly $190 million in ETH and other assets across both Ethereum and Arbitrum. The result was a cascade of bad debt that sent shockwaves through the ecosystem. Aave’s internal incident report pegged the potential worst-case loss at up to $230 million.

The fallout was immediate. Lenders rushed to withdraw deposits, and the total value locked on Aave plunged by $10 billion. The Arbitrum Security Council took the rare step of freezing 30,766 ETH linked to the exploit, though the attacker had already converted the bulk of stolen funds into Bitcoin via THORChain — rendering them largely unrecoverable.

Mantle’s Institutional-Style Lifeline

The most significant development in the recovery effort came on April 24, when the Mantle Core Contributor Team unveiled proposal MIP-34. The plan would authorize Mantle’s treasury to lend up to 30,000 ETH — worth roughly $69.4 million at current prices — to the Aave DAO, earmarked specifically for cleaning up the rsETH bad debt.

The terms are unusually structured for DeFi. Mantle would charge interest at the Lido staking APR plus a 100-basis-point premium, with a maximum tenor of 36 months. In exchange, Mantle would receive delegated voting rights over 130,000 AAVE tokens, giving it influence in Aave’s governance. Aave would need to pledge 5% of its protocol revenue plus AAVE tokens worth at least $11 million as collateral.

Bybit CEO Ben Zhou publicly endorsed the proposal, with the exchange seen as a strategic partner of Mantle Network. The proposal is still in its discussion phase — Mantle is gathering community feedback via a forum poll before proceeding to a Snapshot vote, after which Aave’s DAO would need to separately approve the facility.

A Growing Coalition

The coordinated response, branded “DeFi United,” is expanding beyond Mantle’s contribution. Aave’s own governance proposal had already requested 25,000 ETH from its treasury — a fixed allocation that won’t be reduced by contributions from other parties.

Should investors sell immediately? Or is it worth buying Ethereum?

Lido Finance was the first confirmed participant, pledging up to 2,500 stETH worth approximately $5.7 million. Aave founder Stani Kulechov and the EtherFi Foundation each committed 5,000 ETH. The Golem Foundation and Golem Factory together added another 1,000 ETH, while Frax Finance is reportedly working on its own contribution.

Despite these commitments, the total deficit remains over 100,000 ETH, meaning the bailout so far covers only a fraction of the damage. If both Mantle and Aave approve MIP-34, it would mark one of the first major cross-protocol credit facilities in DeFi history — a potential template for how capital-rich layer-2 protocols can deploy their treasuries during systemic stress.

Technical Progress Continues Uninterrupted

While the ecosystem manages the crisis, Ethereum’s development roadmap presses forward. The Glamsterdam upgrade, slated for the first half of 2026, introduces two structural innovations: Enshrined Proposer-Builder Separation (ePBS) and Block-Level Access Lists.

The goal is parallel execution, higher throughput, and fairer MEV distribution. Tomasz Stańczak, former co-executive director of the Ethereum Foundation, has indicated that the gas limit will gradually increase to 100 million per block, eventually reaching 200 million once ePBS is fully operational. Long-term, Ethereum aims for 10,000 transactions per second. A package of gas repricing improvements is expected to reduce fees by roughly 78%.

Testing is currently underway on early developer networks, with activation on the Holesky and Sepolia testnets expected in the coming months.

Price Holds Steady Amid Turmoil

ETH has shown remarkable resilience, trading around $2,330 — up over 8% on a 30-day basis, though still roughly 22% lower year-on-year. The market picture is mixed: Bitmine accumulated over $170 million worth of Ether within 24 hours, while Ethereum spot ETFs recorded net outflows of nearly $76 million on April 23, with roughly $21 million exiting BlackRock products alone.

Whether institutional buyers can sustainably offset ETF selling pressure will determine if ETH can reclaim the $3,000 level. The next catalyst may come from the Aave governance vote — a signal of how seriously the ecosystem takes its solidarity pledge.

Ad

Ethereum Stock: Buy or Sell?! New Ethereum Analysis from April 25 delivers the answer:

The latest Ethereum figures speak for themselves: Urgent action needed for Ethereum investors. Is it worth buying or should you sell? Find out what to do now in the current free analysis from April 25.

Ethereum: Buy or sell? Read more here...