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Critical 9.0Published Apr 22, 2026

CVE-2026-41196Luanti has a mod security sandbox escape

Updated under an hour ago ()

Does this affect you?

It affects luanti-org luanti and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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).

CVSS
9.0 CRITICAL (v4.0, CNA)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
Weakness (CWE)
CWE-94
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
GitHub_M
NVD analysis
Analyzed
Record last updated
Apr 23, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
luanti-org luanti
luanti_org:luanti (from the name)
from 5.0.0, < 5.15.2
CNA record
minetest minetest
minetest:minetest
from 5.0.0 before 5.15.2
NVD

References

  • x-refsource-confirm, third-party-advisory
  • x-refsource-misc, patch

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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