CVE-2026-86203

PocketMine-MP versions before 5.39.2 contain an item duplication vulnerability caused by a failure to validate entity despawn state when processing attack packets from clients. A race condition allows an attacker to attack a disconnecting player, triggering multiple death handlers that cause inve...

CVE-2026-86203 PocketMine-MP before 5.39.2 Item Duplication via Despawn State

PocketMine-MP versions before 5.39.2 fail to validate entity despawn state when processing attack packets from clients. Attackers can exploit a race condition by attacking a disconnecting player to trigger multiple death handlers, causing inventory items and experience to drop multiple times for...