CVE-2024-37153: Evmos's contract balance not updating correctly after interchain transaction

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2024-06-06 · updated 2026-06-17
Weakness: CWE-670

Description

Evmos is the Ethereum Virtual Machine (EVM) Hub on the Cosmos Network. There is an issue with how to liquid stake using Safe which itself is a contract. The bug only appears when there is a local state change together with an ICS20 transfer in the same function and uses the contract's balance, that is using the contract address as the sender parameter in an ICS20 transfer using the ICS20 precompile. This is in essence the "infinite money glitch" allowing contracts to double the supply of Evmos after each transaction.The issue has been patched in versions >=V18.1.0.

Affected products

evmos: before 18.1.0 — fixed in 18.1.0

How to fix

Upgrade to a fixed version: evmos 18.1.0. Check the vendor advisory for mitigations.

References

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