Jump Crypto Discloses Infinite Mint Bug in BNB Chain

Per a recent blogpost, Jump Crypto has disclosed the discovery & patching of an infinite mint exploit on BNB Chain. An attacker could have minted an infinite amount of BNB tokens, sold them for stables or ETH on BNB Chain, and then bridged to Ethereum; a catastrophic event for the entire chain.

The root of the issue was caused from BNB’s fork of the Cosmos SDK, a version which contains numerous BNB-specific changes. This is once again a reminder that smart contract and implementation bugs are still the most likely ways blockchains get exploited today vs any specific cryptoeconomic design (which is what we spend all of our time arguing about).

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