CardboardPowered Cardboard Improper Buffer Operation Vulnerability in World Implementation

Vulnerability

A vulnerability has been identified in CardboardPowered Cardboard versions prior to 1.21.4, specifically within the WorldImpl.java file. This issue involves improper management of memory buffers, particularly in the chunk unloading process. The current implementation lacks essential safety checks, such as validating whether chunks are in use and performing null-checks on chunk references. These flaws could lead to server crashes, data corruption, and potential remote code execution vulnerabilities.

Impact

Exploitation of this vulnerability could cause server crashes, data corruption, and create avenues for remote code execution.

Remediation

Users can upgrade to CardboardPowered Cardboard version 1.21.4 or later to address this vulnerability.

Added: Jan 27, 2026, 9:38 AM
Updated: Jan 27, 2026, 3:42 PM

Vulnerability Rating

Custom Algorithm
spread
0.0
impact
10.0
exploitability
4.7
remediation
0.0
relevance
2.4
threat
0.0
urgency
10.0
incentive
0.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.