CVE-2026-86198

Medium

Description

PocketMine-MP versions before 5.44.2 fail to properly validate multiple ResourcePackClientResponsePacket packets with STATUS_COMPLETED status during resource pack handling. Malicious clients can send batches of these packets to repeatedly trigger pre-spawn progression, creating duplicate Player objects and amplifying memory consumption and network traffic.

SeverityMedium

CVSS4.2

Exploit probability—

ProductPocketMine-MP

PublishedSep 9, 2026

First seenSep 9, 2026

Weakness typeCWE-837CWE-837

How to fix

Update

pmmp PocketMine-MP5.44.2 or later

Patches

github.com/pmmp/PocketMine-MP/commit/7a27894146a04964ab628ed9033140fdbf887ff3

Vendor advisories

github.com/pmmp/PocketMine-MP/security/advisories/GHSA-pg53-p7qp-65cv

Affected products

Product	Affected versions	Fixed in
pmmp PocketMine-MP	v < 5.44.2	5.44.2

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