Tendermint team reported on successful hardfork implementation to a mainnet of Cosmos. Thi was done to fix critical vulnerability.
Two days ago the company discovered a bug in CosmosSDK, a solution for creating applications on the blockchain using the Golang programming language.
To eliminate the vulnerability, it was decided to conduct hardfork. Having secured a sufficient number of confirmations from validators, Tendermint carried out an upgrade of the network on block # 482100.
Service providers were advised to upgrade immediately to the most recent and most secure version of CosmosSDK.
It is reported that the bug threatened the safety model of the chains in the Cosmos PoS system. In this case, the developers emphasize that the vulnerability did not allow to steal or create new ATOM tokens.
Tendermint promised to reveal the technical details of the bug in 7-10 business days.