CVE-2023-54394: Pmmp Pocketmine-Mp

Medium severity, CVSS 4.3. EPSS: 0.4% chance of exploitation in the next 30 days.

PocketMine-MP before 4.18.0-ALPHA2 fails to rate-limit mismatch type InventoryTransactionPacket requests, allowing attackers to trigger excessive inventory synchronization. Attackers can send numerous mismatch transactions to force the server to transmit large amounts of serialized inventory data, consuming significant bandwidth without authentication.

Affected products

• Pmmp Pocketmine-Mp: before 4.18.0-ALPHA2 (fixed in 4.18.0-ALPHA2)

Published 2026-09-09. Last modified 2026-10-08.