SB2023053076 - Improper input validation in PocketMine-MP
Published: May 30, 2023 Updated: April 8, 2026
Security Bulletin ID
SB2023053076
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper input validation (CVE-ID: N/A)
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.