CVE-2023-54394

Medium

Description

PocketMine-MP before 4.18.0-ALPHA2 fails to rate-limit mismatch type InventoryTransactionPacket requests, allowing attackers to trigger excessive inventory synchronization. Attackers can send numerous mismatch transactions to force the server to transmit large amounts of serialized inventory data, consuming significant bandwidth without authentication.

SeverityMedium

CVSS4.3

Exploit probability—

ProductPocketmine/pocketmine-mp

PublishedSep 9, 2026

First seenSep 9, 2026

Weakness typeCWE-770Allocation of resources without limits

How to fix

Update

pocketmine/pocketmine-mp4.18.0-ALPHA2 or later

Patches

github.com/pmmp/PocketMine-MP/commit/ca6d51498f12427a947467da8fcad7811418e6cc

Vendor advisories

github.com/pmmp/PocketMine-MP/security/advisories/GHSA-42qm-8v8m-m78c

Affected products

Product	Affected versions	Fixed in
pocketmine/pocketmine-mpPackagist	v < 4.18.0-ALPHA2	4.18.0-ALPHA2

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