What kind of vulnerability is it? Who is impacted? At the moment, users are able to delegate tokens that have not yet been vested. This affects employees and grantees who have funds managed via ClawbackVestingAccount.
This advisory has been created to address the following vulnerabilities found in the Evmos codebase and affecting vesting accounts.
Short summary of the problem. Make the impact and severity as clear as possible. For example: An unsafe deserialization vulnerability allows any unauthenticated user to execute arbitrary code on the server.
An external contributor, @iczc, discovered a way to mint arbitrary tokens due to the possibility to have two different states not in sync during the execution of a transaction. The exploit is based on the fact that to sync the Cosmos SDK state and the EVM one, we rely on the stateDB.Commit() method. When we call this method, we iterate though all the dirtyStorage and, if and only if it …