HIGH 7.1 NVD
CVE-2026-86204
PocketMine-MP versions before 5.39.2 fail to limit JSON payload size in ModalFormResponsePacket handling, allowing authenticated players to cause denial of serv
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.
References
- https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-788v-5pfp-93ff
- https://www.vulncheck.com/advisories/pocketmine-mp-before-5.39.2-denial-of-service-via-mod
- https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-788v-5pfp-93ff
This high severity vulnerability with a CVSS score of 7.1 was published on 2026-09-09 via NVD.
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