CVE-2026-86204
MEDIUM
NVD
CVSS Score
6.5
Severity
MEDIUM
Published
Sep 09, 2026
Vendor
unknown
Description
PocketMine-MP versions before 5.39.2 fail to limit JSON payload size in ModalFormResponsePacket handling, allowing authenticated players to cause denial of service. Attackers can send modal form response packets with massive JSON arrays to exhaust server memory and CPU resources, rendering the server unresponsive.