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OpenAdvisories
High · 7.5 CVE-2026-86201 EUVD-2026-74912GHSA-h6rj-3m53-887hGHSA-qrr8-c2f6-fmqr

PocketMine-MP before 5.41.1 LogDoS via LoginPacket clientData

Published Sep 9, 2026 · Updated Oct 8, 2026 · Assigned by VulnCheck

Description

PocketMine-MP before 5.41.1 contains a denial of service vulnerability in LoginPacket processing where large or complex structures in unknown clientData JWT properties cause excessive logging without sanitization. Attackers can send crafted LoginPackets with deeply nested or massive object structures to trigger out-of-memory conditions and crash the server.

Affected products

VendorProductAffectedFixed
pmmp PocketMine-MP < 5.41.1 5.41.1

Affected packages

EcosystemPackageAffectedFixedRecord
Packagist pocketmine/pocketmine-mp < 5.41.1 5.41.1 GHSA-h6rj-3m53-887h

References