CVE-2024-43395: Jackmacwindows Craftos-Pc 2

High severity, CVSS 8.2. EPSS: 0.4% chance of exploitation in the next 30 days.

CraftOS-PC 2 is a rewrite of the desktop port of CraftOS from the popular Minecraft mod ComputerCraft using C++ and a modified version of PUC Lua, as well as SDL for drawing. Prior to version 2.8.3, users of CraftOS-PC 2 on Windows can escape the computer folder and access files anywhere without permission or notice by obfuscating `..`s to bypass the internal check preventing parent directory traversal. Version 2.8.3 contains a patch for this issue.

Affected products

• Jackmacwindows Craftos-Pc 2: before 2.8.3 (fixed in 2.8.3)
• MCJACK123 CRAFTOS2: before 2.8.3 (fixed in 2.8.3)

Published 2024-08-16. Last modified 2026-06-17.