CVE-2025-24371

CVE-2025-24371 affects CometBFT’s blocksync protocol. If a peer first reports a non-existent latest height X and then a lower Y (X>Y), a node may continually try to catch up and become blocked, potentially impacting availability. This is a networked, low-complexity issue with high impact on av...

CVE-2025-24371 Malicious peer can make node stuck in blocksync in github.com/cometbft/cometbft

CometBFT is a distributed, Byzantine fault-tolerant, deterministic state machine replication engine. In the blocksync protocol peers send their base and latest heights when they connect to a new node A, which is syncing to the tip of a network. base acts as a lower ground and informs A that the...

CVE-2025-24371 Malicious peer can make node stuck in blocksync in github.com/cometbft/cometbft

CometBFT is a distributed, Byzantine fault-tolerant, deterministic state machine replication engine. In the blocksync protocol peers send their base and latest heights when they connect to a new node A, which is syncing to the tip of a network. base acts as a lower ground and informs A that the...