CVE-2026-41196
Publication date 23 April 2026
Last updated 7 September 2026
Ubuntu priority
Description
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).
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| luanti | 26.04 LTS resolute |
Fixed 5.10.0+dfsg-5+deb13u1build0.26.04.1
|
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | Not in release | |
| minetest | 26.04 LTS resolute | Not in release |
| 24.04 LTS noble |
Fixed 5.6.1+dfsg+~1.9.0mt8+dfsg-4ubuntu0.1~esm1
|
|
| 22.04 LTS jammy |
Fixed 5.4.1+repack-2ubuntu0.1~esm1
|
|
| 20.04 LTS focal |
Fixed 5.1.1+repack-1ubuntu0.1~esm1
|
|
| 18.04 LTS bionic |
Not affected
|
|
| 16.04 LTS xenial |
Not affected
|
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CVSS version:
Base score
9.0 · Critical
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Base score
10.0 · Critical
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
References
Related Ubuntu Security Notices (USN)
- USN-8732-1
- Minetest vulnerability
- 7 September 2026