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TI-2026-29818 Aliases CVE-2026-41196

Luanti has a mod security sandbox escape

Priority MEDIUM 41CWE-94Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-94.

Summary

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).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00374 31st percentileScored 2026-11-07
Fix Fixed luanti (luanti-org): 5.15.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
luanti-orgluanti5.0.0 to before 5.15.25.15.2Patch availableCNA
  • luanti Vendorluanti-org Affected 5.0.0 to before 5.15.2 Fixed in 5.15.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:minetest:minetest:*:*:*:*:*:*:*:*5.0.0 to before 5.15.2Vulnerableminetest
  • cpe:2.3:a:minetest:minetest:*:*:*:*:*:*:*:* Versions 5.0.0 to before 5.15.2 Vulnerable ·minetest

Remediation

  • Fix · CNA luanti (luanti-org) Fixed in 5.15.2

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-41196
  2. 2026-10-25 EPSS moved to the below the 50th percentile

References

Patch 1

Advisory 1

  • TI-2022-16403 Lua sandbox escape from mod in Minetest CVSS 3.1CRITICAL 10.0
  • TI-2022-08181 Minetest before 5.4.0 allows attackers to add or modify arbitrary meta fields of the same… CVSS 3.1CRITICAL 9.8
  • TI-2022-08182 In Minetest before 5.4.0, players can add or subtract items from a different player's inventory. CVSS 3.1MEDIUM 6.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences