EVM–Cosmos Convergence (Part 2)

The convergence of Ethereum’s EVM with the Cosmos ecosystem introduces powerful interoperability through precompiled contracts that allow EVM transactions to interact with native Cosmos modules like staking and governance. However, this integration also exposes critical security risks due to differences in how each system manages state. Key vulnerabilities include incomplete state commits, inconsistencies when EVM transactions revert without rolling back Cosmos state, and partial state writes caused by out-of-gas errors during precompile execution. These issues could lead to atomicity failures, fund leakage, and validator instability. Patches introduced in Evmos versions 17.0.0 and 19.0.0, along with atomic execution safeguards like RunAtomic(), have been implemented to address these problems. Securing this hybrid architecture is essential for the future of layered chains that bridge Ethereum and Cosmos functionality.

Q1: What is the primary purpose of precompiled contracts in Cosmos EVM?
A1: To enable direct interaction with Cosmos modules from EVM
Q2: Which type of precompile can change Cosmos SDK states?
A2: Stateful
Q3: What problem arises if EVM precompiles don't revert on EVM transaction failure?
A3: State inconsistencies
Q4: How can partial state changes from precompile failures be prevented?
A4: Wrapping logic in atomic execution blocks
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