CVE-2023-54390

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/pmmp/PocketMine-MP/commit/4f90e8dab1c9df331fad7d3d89823404e882668c
https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-92jh-gwch-jq38
https://www.vulncheck.com/advisories/pocketmine-mp-before-5.3.1-denial-of-service-via-loginpacket

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-09 14:17

Updated : 2026-09-09 20:20

NVD link : CVE-2023-54390

Mitre link : CVE-2023-54390

CVE.ORG link : CVE-2023-54390

JSON object : View

Products Affected

No product.

CWE

CWE-1025

Comparison Using Wrong Factors

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