The MANTRA Chain mainnet remained paused on August 21 after the project disclosed that an attacker had exploited a flaw in an upstream dependency. While the network is halted, all transactions, asset transfers, and staking activities are unavailable.

MANTRA has not publicly identified the specific vulnerable software, referring to it only as an "upstream dependency." According to the official incident record, the team is actively tracing the movement of funds, collaborating with exchange partners, and working to determine the full scope of the breach.

The incident record outlines the sequence of MANTRA's response, which began with freezing endpoints and transactions to investigate the root cause and impact. The team later confirmed the precautionary shutdown was due to an attacker's exploitation of the dependency. Subsequently, a patched software version was announced and deployed for testing, with the mainnet remaining offline throughout this process.

In its latest update, the project assured users that funds were not affected by the halt itself and that a comprehensive network state snapshot was captured before initiating the restart procedure. This assurance, however, is confined to the network pause, which merely stops transactions from being processed. The actual impact on assets resulting from the attacker's activity has not yet been confirmed.

To address the exploit, MANTRA has issued patched release v8.4.0, which is currently undergoing testing and due diligence on the DuKong testnet. The project's GitHub release confirms this version and notes the inclusion of a mainnet upgrade handler. This testing phase on DuKong serves as the critical gate before the software can be deployed to the mainnet. MANTRA stated it is prioritizing a cautious, verified rollout and has instructed validators to keep their mainnet nodes offline until a coordinated restart is announced.

This coordination is necessary to prevent individual node operators from bringing services back online independently. Validators must await MANTRA's official announcement to ensure the patched network returns cohesively across the entire validator set. The team had been targeting a restart for later on August 21, but this was contingent upon the patch successfully completing its tests. The mainnet can only be reactivated once the patch is fully vetted and the broader validator set is prepared for the synchronized upgrade.

For users, the halt means all normal on-chain activities are frozen. According to earlier incident updates, assets on MANTRA Chain cannot be moved, staking operations are disabled, and deposits and withdrawals for the token remain suspended on affected platforms. MANTRA has advised that users do not need to take any action while the chain is offline.

A successful restart announcement will resolve the immediate operational freeze. However, the separate issue of MANTRA's ongoing assessment of fund movements and the complete financial impact of the incident remains a situation to be monitored.