Vulnerability DatabaseWS-2023-0321
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WS-2023-0321
Published:September 22, 2023
Updated:August 27, 2026
An attacker could crash PocketMine-MP by sending malformed JSON in "LoginPacket". This happened due to the particular handling of NULL types in the json mapper which accepts NULL type values in typed arrays which PocketMine-MP did not expect. Code processing arrays in the JSON data could then crash due to unexpected "NULL" elements.
Related Resources (4)
https://github.com/pmmp/PocketMine-MP
https://github.com/advisories/GHSA-92jh-gwch-jq38
https://github.com/pmmp/netresearch-jsonmapper/commit/4f90e8dab1c9df331fad7d3d89823404e882668c
https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-92jh-gwch-jq38
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH