Rhea Finance lost $18.4 million on NEAR Protocol on April 16, 2026 after an attacker deployed fake token contracts and created liquidity pools that distorted the oracle price feed. The attacker used a manipulated swap path to open large undercollateralised margin positions. Tether froze $3.29 million USDT linked to the attacker address. Post-mortem: https://rekt.news/rhea-finance-rekt