Leaderboard
349All-time rank
CB
ChainSwap Bridge
Jul 11, 2021
$4.4M
Lost
$4.4M
Recovered
$0
Net loss
$4.4M
Unrecovered0% recovered
On July 11, 2021, ChainSwap bridge was exploited when attackers identified a logical flaw in the cross-chain quota code. The vulnerability allowed invalid, non-whitelisted addresses to bypass authorization and increase the on-chain bridge quota.
4 million across Ethereum and BSC, affecting Wilder World, Antimatter, Optionroom, and others.
How the exploit worked
View reproducible PoCBridge, logic flaw.
Lost: $4.4 million
Source: DeFiHackLabs (SunWeb3Sec)
- Target
- Bridge
- Classification
- Bridge & Cross-Chain
- Technique
- Bridge Logic Flaw
- Attribution
- Unknown
- Chains
EthereumBSC
Event timeline
- Jul 11, 2021Exploit executed — $4.4M drained via bridge logic flaw
- Attributed to Unknown
- Recovery status Unrecovered 0%
Data credits
- DefiLlamaIncident record, amounts, chains, recovery data and logo
- DeFiHackLabsExploit analysis and reproducible proof-of-concept (by SunWeb3Sec)