Polygon Heimdall v0.11.0 Fix Critical Consensus Vulnerability

Polygon deploys Heimdall v0.11.0 to patch critical consensus layer flaw, activating with Kyoto fork at block 51,533,000 on August 18.

Woofun AI reports that Polygon Labs has issued the Heimdall v0.11.0-private mainnet release to address a critical security vulnerability in the consensus layer. The patch resolves an issue within the fee-coins-cap gate and will activate concurrently with the Kyoto hard fork at block height 51,533,000, estimated for 20:40 on August 18. While specific vulnerability details remain undisclosed, source code publication is scheduled following stable version deployment. Node operators are urged to upgrade immediately to maintain network compatibility and security. Heimdall functions as the Polygon PoS consensus layer, managing validators and block producer selection. It aggregates execution layer blocks from Bor into a Merkle tree and submits them to Ethereum Mainnet as checkpoints, ensuring final state confirmation.