Ubuntu Security Notices USN-8732-1 USN-8732-1: Minetest vulnerability Publication date 7 September 2026 Overview Minetest could be made to crash or run programs if it received specially crafted network traffic from an authenticated user. Releases 24.04 LTS 22.04 LTS 20.04 LTS Open side navigation Close side navigation Packages Details Update instructions References Packages minetest - Free and open source infinite-world block sandbox game and a game engine Details It was discovered that Minetest did not properly sanitize the Lua sandbox environment when using LuaJIT. A malicious mod could escape the sandbox to execute arbitrary code and gain full file system access on the server. An attacker could use this issue to compromise the server. It was discovered that Minetest did not properly sanitize the Lua sandbox environment when using LuaJIT. A malicious mod could escape the sandbox to execute arbitrary code and gain full file system access on the server. An attacker could use this issue to compromise the server. Update instructions In general, a standard system update will make all the necessary changes. Learn more about how to get the fixes. The problem can be corrected by updating your system to the following package versions: Ubuntu Release Package Version 24.04 LTS noble minetest-server – 5.6.1+dfsg+~1.9.0mt8+dfsg-4ubuntu0.1~esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. 22.04 LTS jammy minetest-server – 5.4.1+repack-2ubuntu0.1~esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. 20.04 LTS focal minetest-server – 5.1.1+repack-1ubuntu0.1~esm1 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. Reduce your security exposure Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines. Get Ubuntu Pro References CVE-2026-41196 CVE-2026-41196