SB2021121662 - Improper access control in PocketMine-MP
Published: December 16, 2021 Updated: April 8, 2026
Security Bulletin ID
SB2021121662
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper access control (CVE-ID: N/A)
The vulnerability allows a local user to disclose sensitive information.
The vulnerability exists due to improper access control in operator status handling when processing de-op commands against entries in ops.txt with non-lowercase letters. A local user can add their name to ops.txt with uppercase letters to disclose sensitive information.
The issue can make a player impossible to de-op using commands because operator checks match names case-insensitively while removal does not.
Remediation
Install update from vendor's website.