The KelpDAO exploit drained $290M across 20+ chains, a warning for Coinbase's new multichain Base App. Can less Base-centric design grow users without increasing cross-chain risk?
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The April 18 KelpDAO exploit drained roughly $290 million across more than 20 chains. An attacker exploited a verification failure in LayerZero adapter infrastructure to mint or release about 116,500 rsETH on Ethereum, Chainalysis said. The incident froze liquidity and de-pegged wrapped tokens, stressing markets wherever KelpDAO's rsETH was deployed.
That event is a concrete warning for any multichain consumer app. Coinbase's newly launched Base App, a rebranded version of Coinbase Wallet, now supports trading, payments and a mini-app directory across multiple networks. The company announced the move on July 16-17, 2025, during its "A New Day One" event. The app treats Base as a fast, low-cost default while enabling access to other EVM chains.
A single trust-assumption failure can strand liquidity across a whole network of chains. The KelpDAO exploit hit rsETH on every chain where it was listed, Chainalysis said. For an app like Base App that relies on third-party bridges and messaging layers, user outcomes depend on the weakest component in the route. Even if Coinbase does not operate those bridges, its users face the same tail risk.
Coinbase has not disclosed which bridges or interoperability protocols the Base App uses. But the KelpDAO precedent suggests that any multichain app inherits the surface area of every chain and bridge it touches. Security analysts said that routing logic, default-deny policies and rapid incident response become critical when an app spans multiple networks.
Base itself has a profile well suited to a cross-chain consumer app. DeFiLlama data show total value locked around $4.65 billion, with roughly 262,500 active addresses in 24 hours and about 11 million daily transactions. Bridged TVL stands at $12.73 billion. Stablecoins dominate the stack: the stablecoin market cap is about $4.9 billion, and USDC holds roughly 85.6% of that share. That liquidity mix is highly portable across networks.
The multichain stance reduces the cognitive cost for users who want to hop between chains. For developers, it expands the potential user base beyond Base without abandoning it. Uniswap's own multichain deployments show that a protocol can maintain meaningful liquidity on Base while also operating on dozens of other networks. Uniswap holds more than $400 million in liquidity on Base, DeFiLlama data show.
The open question is whether a less Base-centric app lifts Base itself or gradually dilutes it. The high stablecoin share points to payments and commerce as key use cases. If the Base App keeps fees, slippage and finality times transparent across chains, multichain stops being a power-user feature and becomes the default way to transact. Several developers said that lower distribution risk for mini-apps could attract more builders to the platform.
But the KelpDAO exploit shows that multichain distribution also brings systemic risk. A single verification failure can freeze liquidity across a dozen chains. For the Base App to grow without hollowing out Base, Coinbase must convert the imported bridged liquidity into sticky native activity. And it must invest in cross-chain safety measures before the next bridge exploit tests its user base.
Traders and security analysts said the key indicators to watch are whether Base's native TVL grows faster than its bridged TVL, and whether the Base App's incident response times match those of dedicated security teams. If the app can offer a seamless multichain experience without exposing users to the kind of tail risk that hit KelpDAO, the bet may pay off. If not, a bad week can erase years of UX gains.
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