Industry Newssmart contractssolidityinteger overflowtruebit
Truebit Suffers $26 Million Token Minting Exploit
8.1
Truebit suffered a $26 million exploit that let an attacker mint TRU tokens at near-zero cost, triggering a roughly 99% crash in the TRU token, SlowMist said in a Tuesday post-mortem. SlowMist attributed the breach to an integer overflow bug in a Solidity 0.6.10 Purchase contract that wrapped price calculations to near zero, underscoring persistent smart-contract risks and prompting audits.
Key Points
- 1Exploiter minted $26 million TRU tokens via integer overflow in Truebit Purchase contract
- 2Lack of overflow checks in Solidity 0.6.10 caused silent uint256 wraparound and price calculations zeroing
- 3Recommend auditing legacy contracts, upgrading compilers, and adding overflow protections to prevent similar drains
Scoring Rationale
Strong practical impact and official post‑mortem support, limited by being a single‑protocol incident within the broader crypto ecosystem.
Sources
Public references used for this report.
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