Cosmos Labs Admits Misjudgment of Vulnerability, Six Chains Suffer $5.7 Million Loss

Cosmos Labs released a technical report acknowledging a misjudgment of an integer underflow vulnerability in Cosmos EVM, which led to attacks on six blockchain networks between August 20 and 25, resulting in approximately $5.7 million in stolen assets. Attackers exploited the flaw to underflow account balances to the maximum value of 2^256-1 before transferring the inflated funds. Although the vulnerability was reported in April, initial testing failed to reproduce the issue, leading to a silent patch in May. After independent researchers confirmed the impa