WETH markets reopen on Aave as rsETH recovery advances, rates easing

WETH markets on Aave have been returned to regular operation after the protocol lifted precautionary constraints imposed in the wake of the Kelp DAO rsETH bridge exploit. A Direct-to-AIP proposal published on the Aave governance forum set out restoration of WETH loan-to-value (LTV) to pre-exploit levels and signaled imminent unfreezing of WETH on affected L2 deployments.

The incident began on April 18, 2026, when a forged cross-chain message on a LayerZero-based bridge allowed an attacker to withdraw roughly 116,500 rsETH and use it as collateral across lending markets. Aave's incident report and subsequent governance posts show that rsETH and wrsETH reserves were frozen immediately, WETH LTV was set to zero as a precaution, and coordinated liquidation actions on May 6 reclaimed 106,993 rsETH across Aave and Compound. The remaining shortfall—about 5,211 rsETH—was earmarked to be covered by commitments from the DeFi United coalition, while Arbitrum's security actions recovered approximately $71 million in stolen ETH for the recovery effort.

Those recovery steps have tangible market effects: Aave's internal analysis showed significant bad-debt exposure concentrated in WETH reserves across multiple chains (totaling tens of millions in USD terms) and extremely high utilization rates that had constrained liquidation mechanics. Restoring WETH LTV and lifting freezes on Arbitrum, Base, Mantle and Linea aim to restore normal counterparty flows and allow legitimate borrowers to re-use WETH as collateral, reducing mechanical pressure on the lending pools.

The episode highlights the broader DeFi governance and infrastructure response: protocol-level guardians, cross-protocol liquidation coordination, coalition-funded recovery commitments and on-chain legal actions combined to limit contagion. Aave's documents point to the Umbrella safety module and DAO treasury as parts of the backstop architecture but also note limitations when exposures are concentrated on L2s rather than Ethereum mainnet. The coordinated approach may serve as a precedent for future cross-chain incidents.

Market commentators expect gradual normalization: borrowing rates and liquidity metrics should ease as LTVs and institutional confidence are restored, but elevated tail risks remain for highly leveraged positions until all recovery funds are deployed and oracle markets fully reflect restored backing. On-chain analytics and industry reporting stress that structural changes to bridge security and faster guarded responses will be key to reducing systemic risk going forward.