StarkNet Outage Incident Report: State Conflict Between Execution Layer and Proof Layer Resulted in Approximately 18 Minutes of On-chain Activity Rollback

BlockBeats News, January 11, the Ethereum L2 network Starknet released a post-incident analysis report on Monday's brief mainnet outage, stating that the incident was caused by a state inconsistency between the execution layer (blockifier) and the proof layer: under specific cross-function call and rollback combinations, the execution layer erroneously recorded state writes that had been rolled back, leading to transaction execution failures. The affected transactions did not receive L1 finality confirmation.

This event triggered a chain reorganization, rolling back about 18 minutes of on-chain activity. This is the second major interruption since 2025, with the previous one in September lasting over 5 hours due to a sequencer vulnerability, rolling back about 1 hour of on-chain activity.