Mantra Chain Restarted After 30-Hour Outage Caused by EVM Module Flaw
MANTRA Chain's mainnet resumed operations on August 22 after a 30-hour outage caused by a Cosmos-EVM module vulnerability. The issue was detected on August 20, when developers halted block production as a precaution and froze all transactions.
The project attributed the vulnerability to its Cosmos-EVM module and stated that two wallet addresses were affected before the threat was contained. MANTRA-operated validators were upgraded first, followed by validator partners, ordinary node operators, RPC services, and archive nodes.
The team captured a complete snapshot of the blockchain at the halted state and reviewed known attack paths before preparing the patch. The update did not require module changes, state migrations, or modifications to stored blockchain data.