CVE-2022-51017
Published:September 07, 2026
Updated:September 22, 2026
PocketMine-MP versions before 3.26.5 and 4.0.5 fail to validate the length of skin data fields submitted by players, allowing uncapped values to exceed the 32767 byte TAG_String limit. Attackers can submit oversized skin data fields like skinID or geometryName to trigger exceptions during NBT data serialization, causing server crashes.
Affected Packages
https://github.com/pmmp/PocketMine-MP.git (GITHUB):
Affected version(s) >=4.0.0-BETA1 <4.0.5Fix Suggestion:
Update to version 4.0.5pocketmine/pocketmine-mp (PHP):
Affected version(s) >=4.0.0-BETA1 <4.0.5Fix Suggestion:
Update to version 4.0.5pocketmine/pocketmine-mp (PHP):
Affected version(s) >=3.0.0 <3.26.5Fix Suggestion:
Update to version 3.26.5Related Resources (7)
Do you need more information?
Contact UsCVSS 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
Weakness Type (CWE)
Improper Input Validation
EPSS
Base Score:
0.47