CVE-2026-24794
Unknown Unknown - Not Provided
Buffer Overflow in Cardboard WorldImpl.java Before

Publication date: 2026-01-27

Last updated on: 2026-01-27

Assigner: Government Technology Agency of Singapore Cyber Security Group (GovTech CSG)

Description
Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in CardboardPowered cardboard (src/main/java/org/cardboardpowered/impl/world modules). This vulnerability is associated with program files WorldImpl.Java. This issue affects cardboard: before 1.21.4.
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Meta Information
Published
2026-01-27
Last Modified
2026-01-27
Generated
2026-06-16
AI Q&A
2026-01-27
EPSS Evaluated
2026-06-15
NVD
CVE-2026-24794
EUVD
EUVD-2026-4718
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
cardboardpowered cardboard to 1.21.4 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-119 The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
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Executive Summary

CVE-2026-24794 is a critical vulnerability in the CardboardPowered project related to improper handling during the chunk unloading process. The system attempts to unload chunks without proper safety checks, such as verifying if chunks are currently in use or performing null-checks on chunk references. This improper restriction of operations within memory buffer bounds can cause server crashes, data corruption, and may allow remote code execution. [1]

Impact Analysis

This vulnerability can lead to severe impacts including server crashes, which disrupt service availability; data corruption, which can result in loss or alteration of important data; and potential remote code execution, which could allow attackers to execute arbitrary code on the affected system, compromising security and control. [1]

Detection Guidance

Detection of this vulnerability involves monitoring for server crashes, data corruption, or abnormal behavior related to chunk unloading in the CardboardPowered server. Since the issue arises from unsafe operations on chunk references, you can check server logs for errors or exceptions related to chunk unloading. Specific commands are not provided in the resources, but general approaches include reviewing logs for stack traces or error messages around chunk unloading, and using debugging tools to trace chunk unload operations. Network detection is unlikely as this is a server-internal memory handling issue. [1]

Mitigation Strategies

Immediate mitigation involves updating the CardboardPowered software to version 1.21.4 or later, where the vulnerability has been fixed by adding proper safety validations during chunk unloading. If updating is not immediately possible, avoid operations that trigger chunk unloading or implement additional safety checks in your deployment to prevent unloading chunks that are in use or null references. Monitoring and restricting access to the server to trusted users can also reduce risk until the patch is applied. [1]

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