Wanchain Cardano Bridge Exploited for $12.3 Million — 515 Million NIGHT Tokens Stolen
A Wanchain-operated bridge connecting Cardano to BNB Chain was exploited, with approximately 515.2 million NIGHT tokens drained from the bridge treasury, valued at approximately $12.3 million** at pre-exploit prices. The attacker exploited a **signature reuse vulnerability** in the TreasuryCheck validator, allowing the same signature to be reused across chains. The incident unfolded in four rapid transactions over an eight-minute window. NIGHT sold off sharply, falling **more than 30%** within 24 hours to a record low near **$0.016. The attacker has already sold $5.7 million of the stolen tokens.
Risk reminder: Cross-chain bridges remain prime targets for exploits. The Midnight Foundation confirmed the core network remained secure — the incident was isolated to bridge infrastructure.
