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OpenAdvisories
High · 7.5 CVE-2023-54390 EUVD-2023-60621GHSA-92jh-gwch-jq38GHSA-q3ff-jxcw-jc3j

PocketMine-MP before 5.3.1 Denial of Service via LoginPacket

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

Description

PocketMine-MP versions before 5.3.1 and 4.23.1 contain a denial of service vulnerability in LoginPacket JSON parsing due to improper null value handling in arrays. Attackers can send malformed JSON with unexpected null elements in LoginPacket to crash the server.

Affected products

VendorProductAffectedFixed
pmmp PocketMine-MP < 4.23.1, 5.0.0 – < 5.3.1 4.23.1

Affected packages

EcosystemPackageAffectedFixedRecord
Packagist pocketmine/pocketmine-mp >= 5.0.0, < 5.3.1 5.3.1 GHSA-92jh-gwch-jq38
Packagist pocketmine/pocketmine-mp < 4.23.1 4.23.1 GHSA-92jh-gwch-jq38

References