CVE-2023-54396

Medium

Description

PocketMine-MP versions before 4.8.1 fail to validate dye color IDs in banner NBT data during deserialization. Attackers can provide invalid color values in inventory transactions or via commands to trigger undefined offset errors and crash the server.

SeverityMedium

CVSS6.5

Exploit probability—

ProductPocketmine/pocketmine-mp

PublishedSep 9, 2026

First seenSep 9, 2026

Weakness typeCWE-129CWE-129

How to fix

Update

pocketmine/pocketmine-mp4.8.1 or later

Patches

github.com/pmmp/PocketMine-MP/commit/08b9495bce2d65a6d1d3eeb76e484499a00765eb

Vendor advisories

github.com/pmmp/PocketMine-MP/security/advisories/GHSA-wqqv-jcfr-9f5g

Affected products

Product	Affected versions	Fixed in
pocketmine/pocketmine-mpPackagist	v < 4.8.1	4.8.1

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