Cosmos recently patched a significant vulnerability in its Inter-Blockchain Communication (IBC) protocol, identified by blockchain security experts at Asymmetric Research. This bug, which had been part of the ibc-go since its inception in 2021, became exploitable with the introduction of new IBC middleware. This could have allowed a reentrancy attack, potentially letting attackers mint unlimited tokens on networks like Osmosis. The quick response prevented any exploitation and protected approximately $126 million worth of digital assets. This incident underscores the evolving complexities and critical need for continuous security assessments in blockchain protocols.
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