UBUNTU-CVE-2026-41196 (CVE-2026-41196)
Vulnerability from osv_ubuntu – Published: 2026-04-23 02:16 – Updated: 2026-09-07 16:45 – Source websiteLuanti (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).
| URL | Type | |
|---|---|---|
{
"affected": [
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "minetest",
"binary_version": "5.1.1+repack-1ubuntu0.1~esm1"
},
{
"binary_name": "minetest-data",
"binary_version": "5.1.1+repack-1ubuntu0.1~esm1"
},
{
"binary_name": "minetest-server",
"binary_version": "5.1.1+repack-1ubuntu0.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "minetest",
"purl": "pkg:deb/ubuntu/minetest@5.1.1+repack-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "5.1.1+repack-1ubuntu0.1~esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.0.1+repack-2",
"5.1.0+repack-1",
"5.1.1+repack-1",
"5.1.1+repack-1build1"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "minetest",
"binary_version": "5.4.1+repack-2ubuntu0.1~esm1"
},
{
"binary_name": "minetest-data",
"binary_version": "5.4.1+repack-2ubuntu0.1~esm1"
},
{
"binary_name": "minetest-server",
"binary_version": "5.4.1+repack-2ubuntu0.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:22.04:LTS",
"name": "minetest",
"purl": "pkg:deb/ubuntu/minetest@5.4.1+repack-2ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "5.4.1+repack-2ubuntu0.1~esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.3.0+repack-2.1",
"5.4.1+repack-2",
"5.4.1+repack-2build1"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "minetest",
"binary_version": "5.6.1+dfsg+~1.9.0mt8+dfsg-4ubuntu0.1~esm1"
},
{
"binary_name": "minetest-data",
"binary_version": "5.6.1+dfsg+~1.9.0mt8+dfsg-4ubuntu0.1~esm1"
},
{
"binary_name": "minetest-server",
"binary_version": "5.6.1+dfsg+~1.9.0mt8+dfsg-4ubuntu0.1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:24.04:LTS",
"name": "minetest",
"purl": "pkg:deb/ubuntu/minetest@5.6.1+dfsg+~1.9.0mt8+dfsg-4ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "5.6.1+dfsg+~1.9.0mt8+dfsg-4ubuntu0.1~esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.6.1+dfsg+~1.9.0mt8+dfsg-2build1",
"5.6.1+dfsg+~1.9.0mt8+dfsg-3",
"5.6.1+dfsg+~1.9.0mt8+dfsg-4",
"5.6.1+dfsg+~1.9.0mt8+dfsg-4build2",
"5.6.1+dfsg+~1.9.0mt8+dfsg-4build3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "luanti",
"binary_version": "5.10.0+dfsg-5+deb13u1build0.25.10.1"
},
{
"binary_name": "luanti-data",
"binary_version": "5.10.0+dfsg-5+deb13u1build0.25.10.1"
},
{
"binary_name": "luanti-server",
"binary_version": "5.10.0+dfsg-5+deb13u1build0.25.10.1"
},
{
"binary_name": "minetest",
"binary_version": "5.10.0+dfsg-5+deb13u1build0.25.10.1"
},
{
"binary_name": "minetest-data",
"binary_version": "5.10.0+dfsg-5+deb13u1build0.25.10.1"
},
{
"binary_name": "minetest-server",
"binary_version": "5.10.0+dfsg-5+deb13u1build0.25.10.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "luanti",
"purl": "pkg:deb/ubuntu/luanti@5.10.0+dfsg-5+deb13u1build0.25.10.1?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.10.0+dfsg-5",
"5.10.0+dfsg-5+deb13u1build0.25.10.1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "luanti",
"binary_version": "5.10.0+dfsg-5+deb13u1build0.26.04.1"
},
{
"binary_name": "luanti-data",
"binary_version": "5.10.0+dfsg-5+deb13u1build0.26.04.1"
},
{
"binary_name": "luanti-server",
"binary_version": "5.10.0+dfsg-5+deb13u1build0.26.04.1"
},
{
"binary_name": "minetest",
"binary_version": "5.10.0+dfsg-5+deb13u1build0.26.04.1"
},
{
"binary_name": "minetest-data",
"binary_version": "5.10.0+dfsg-5+deb13u1build0.26.04.1"
},
{
"binary_name": "minetest-server",
"binary_version": "5.10.0+dfsg-5+deb13u1build0.26.04.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "luanti",
"purl": "pkg:deb/ubuntu/luanti@5.10.0+dfsg-5+deb13u1build0.26.04.1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "5.10.0+dfsg-5+deb13u1build0.26.04.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.10.0+dfsg-5"
]
}
],
"aliases": [],
"details": "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\u0027s 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).",
"id": "UBUNTU-CVE-2026-41196",
"modified": "2026-09-07T16:45:49Z",
"published": "2026-04-23T02:16:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-41196"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-41196"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8732-1"
}
],
"related": [
"USN-8732-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "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",
"type": "CVSS_V4"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-41196"
]
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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