SB2023053076 - Improper input validation in PocketMine-MP

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Main Vulnerability Database SB2023053076

SB2023053076 - Improper input validation in PocketMine-MP

Published: May 30, 2023 Updated: April 8, 2026

Security Bulletin ID SB2023053076
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper input validation (CVE-ID: N/A)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper input validation in LoginPacket processing when parsing malformed JWT JSON. A remote attacker can send a specially crafted LoginPacket payload to cause a denial of service.

The issue is caused by a dependency vulnerability in netresearch/jsonmapper when mapping JSON arrays and objects onto scalar model properties such as strings.


Remediation

Install update from vendor's website.

References