Cosmos Labs Confirms Cosmos EVM Incident as 3 Chains Disclose Impact

Cosmos Labs confirmed an ongoing security incident affecting users of the Cosmos EVM module. It advised chains in contact with it to ask validators to halt block production.

Three networks have now disclosed impact. KiiChain and TAC froze their chains after attackers drained accounts, while MANTRA restarted its mainnet.

3 Chains Traced Incidents to Cosmos EVM

Three networks disclosed security incidents within days of each other. All three named the Cosmos EVM module, a component that lets Cosmos SDK chains run Ethereum-style smart contracts.

MANTRA was first. BeInCrypto reported that the team halted the chain as a precaution amid a security incident in an upstream dependency. The team said two MANTRA-managed wallets were affected, and user balances were never impacted.

The network later informed users that the vulnerability was in the Cosmos-EVM module and that it had been fixed in version 8.4.0, allowing the network to resume normal block production.

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