Medium severity6.5NVD Advisory· Published Sep 9, 2026· Updated Sep 9, 2026

CVE-2026-86204

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.

Affected products

Pmmp/Pocketmine Mpllm-fuzzy2 versions
<5.39.2+ 1 more
- (no CPE)range: <5.39.2
- (no CPE)range: <5.39.2

Patches

Vulnerability mechanics

References

github.com/pmmp/PocketMine-MP/security/advisories/GHSA-788v-5pfp-93ffnvd
www.vulncheck.com/advisories/pocketmine-mp-before-5.39.2-denial-of-service-via-modalformresponsepacketnvd

News mentions

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cvss	0.423
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000