PT-2026-34594 · Luanti Org · Luanti

Published 2026-04-23 · Updated 2026-04-23 · CVE-2026-41196

Mitre

CVSS v4.0

9.0

Critical

AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Luanti (formerly Minetest) is an open source voxel game-creation platform. Starting in version 5.0.0 and prior to version 5.15.2, a malicious mod can trivially escape the sandboxed Lua environment to execute arbitrary code and gain full filesystem access on the user's device. This applies to the server-side mod, async and mapgen as well as the client-side (CSM) environments. This vulnerability is only exploitable when using LuaJIT. Version 5.15.2 contains a patch. On release versions, one can also patch this issue without recompiling by editing builtin/init.lua and adding the line getfenv = nil at the end. Note that this will break mods relying on this function (which is not inherently unsafe).

Fix

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

CVE-2026-41196

Affected Products

Luanti

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-41196 · Security Note
• https://github.com/luanti-org/luanti/security/advisories/GHSA-g596-mf82-w8c3 · Note
• https://github.com/luanti-org/luanti/commit/8a929dfb97aa08337f49ba1bb96a56d6557dc896 · Note