Stake DAO was exploited on Arbitrum on Could 27, 2026, when an attacker minted over 5.4 trillion vsdCRV by exploiting the token’s cross-chain configuration. Stake DAO has warned customers to not work together with vsdCRV, whereas Curve Finance additionally really helpful that customers with deposits or loans within the asdCRV LlamaLend market on Arbitrum withdraw them to mitigate oracle dangers. On-chain knowledge exhibits that the attacker was solely capable of notice a small fraction of the worth into ETH as a consequence of restricted liquidity.
Exploit Particulars
On-chain knowledge on Arbitrum exhibits that the mint transaction occurred at block 467160931 at 09:17:58 UTC on Could 27, 2026. The transaction recorded roughly 5.45 trillion vsdCRV being minted from the null handle to the pockets 0xeF3C…aa25.
On-chain proof of the Stake DAO exploit. Supply: Arbiscan
This transaction interacted with the LayerZero v2 Executor, indicating that the minting course of was associated to the cross-chain messaging stream used to create tokens on Arbitrum. The mint transaction’s hash is 0x7489…e5fe5, in response to Arbiscan knowledge.
Blockaid acknowledged that they detected an ongoing exploit focusing on Stake DAO on Arbitrum, through which the attacker minted over 5.4 trillion vsdCRV and started swapping these tokens into ETH.
In accordance with safety monitoring sources, together with PeckShield, the attacker swapped a portion of the tokens for about 43.78 ETH, price round $91,200 on the time of reporting, after which bridged the property to Ethereum. This determine displays the worth initially realized by the attacker, not the nominal worth of your entire minted vsdCRV provide.
Suspected Root Trigger
Blockaid suspects the exploit possible stemmed from the Stake DAO deployer’s personal key being compromised. The deployer handle talked about is 0x0007…ff62.
From this entry, the attacker is believed to have altered the cross-chain configuration that vsdCRV makes use of to validate messages by way of LayerZero. Particularly, Blockaid mentioned the attacker modified the trusted “peer” from a sound adapter on the Ethereum aspect to a malicious contract deployed by the attacker, after which used that contract to ship faux messages to mint tokens on Arbitrum.
Suspected root trigger is compromised personal key.
Malicious peer deployment: https://t.co/RlJlVYC5xeCross-chain mint: https://t.co/NBQdjaTXu0setPeer #3 (earlier than mint): https://t.co/sq7jrH8tN6…Mint tx: https://t.co/kH52CmHXGm…
— Blockaid (@blockaid_) Could 27, 2026
The main points printed by Blockaid point out that the incident concerned deployer permissions and Stake DAO’s LayerZero OFT configuration, moderately than a confirmed vulnerability throughout the LayerZero core protocol. As of the time of writing, Stake DAO has not printed a full autopsy relating to how the personal key was compromised or the scope of the affected contracts.
This context locations the incident alongside cross-chain messaging dangers that gained consideration following the roughly $292 million Kelp DAO/rsETH incident in April 2026, which additionally concerned message flows by means of LayerZero. The distinction is that within the Stake DAO case, the present knowledge focuses on the venture’s compromised key and OFT configuration.
Market and Consumer Affect
Instantly following the incident, Stake DAO requested customers to not work together with vsdCRV whereas the problem was being dealt with. With over 5.4 trillion new tokens minted, the danger lies not solely within the dilution of the vsdCRV provide but in addition within the affect on liquidity swimming pools, oracles, and protocols linked to this token on Arbitrum.
Curve Finance additionally issued a separate warning for customers with deposits or loans within the asdCRV LlamaLend market on Arbitrum. In accordance with Curve, the market was nonetheless working usually on the time of the warning, however the worth oracle might develop into unstable because of the exploit involving vsdCRV, rising the danger of liquidation for borrowing/debt positions.
When you’ve got deposits or loans in asdCRV LlamaLend market on Arbitrum – please exist ASAP out of precation.
The market is okay proper now however its worth oracle can develop into unstable because of the vsdCRV exploit which may trigger liquidations. https://t.co/HhvMfzXEe9
— Curve Finance (@CurveFinance) Could 27, 2026
Regardless of the huge quantity of tokens minted, the worth initially realized by the attacker was solely round $91,200, which is way decrease than the nominal determine as a result of vsdCRV liquidity was inadequate to soak up your entire pool of latest tokens. The ultimate injury nonetheless depends upon the quantity of tokens swapped, the extent of affect on associated swimming pools, and the remediation measures from Stake DAO.
What Stays Unclear
Stake DAO had not printed a full autopsy on the time the preliminary warnings have been issued. The remaining open questions embody how the personal key was compromised, the scope of the affected contracts, the restoration standing of the cross-chain configuration, and the extent of remaining threat to associated swimming pools or markets on Arbitrum.
Within the brief time period, customers concerned with vsdCRV, sdCRV, or markets utilizing associated oracles on Arbitrum nonetheless want to watch official bulletins from Stake DAO, Curve, and on-chain safety entities. The incident additionally highlights key administration dangers in DeFi, particularly for protocols that also permit deployer or admin keys to change belief configurations between chains.
