CVE-2022-51011: Pmmp Pocketmine-Mp

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

PocketMine-MP before 4.2.10 fails to validate the total length of incoming chat message blobs before splitting them by newline characters, allowing attackers to send large messages containing many newlines. Malicious clients can send megabyte-sized chat packets and bombard the server with thousands of such messages, causing server lockups lasting seconds or minutes.

Affected products

• Pmmp Pocketmine-Mp: before 4.2.10 (fixed in 4.2.10)

Published 2026-09-07. Last modified 2026-10-08.