According to ChainCatcher, the Starknet ecosystem lending protocol Nostra discovered a critical error in its price oracle, which caused the xSTRK and sSTRK prices to be artificially inflated by approximately 3 times. To prevent unnecessary liquidation of user assets, Nostra has suspended borrowing functions for both tokens and advised depositors to withdraw their collateral as soon as possible.
Due to the lack of alternative oracles, Nostra stated that similar risks may persist in the future.