---
title: "CVE-2026-41196\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2026-41196?format=md
keywords: index, follow
---

# CVE-2026-41196

Publication date 23 April 2026

Last updated 7 September 2026

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**10.0 · Critical**

[Score breakdown](https://ubuntu.com/security/CVE-2026-41196?format=md#impact-score)

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## 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

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| luanti | 26.04 LTS resolute | Fixed 5.10.0+dfsg-5+deb13u1build0.26.04.1 |
| 25.10 questing | Ignored end of life, was needs-triage |
| 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release |
| minetest | 26.04 LTS resolute | Not in release |
| 25.10 questing | Not in release |
| 24.04 LTS noble | Fixed 5.6.1+dfsg+~1.9.0mt8+dfsg-4ubuntu0.1~esm1  Ubuntu Pro |
| 22.04 LTS jammy | Fixed 5.4.1+repack-2ubuntu0.1~esm1  Ubuntu Pro |
| 20.04 LTS focal | Fixed 5.1.1+repack-1ubuntu0.1~esm1  Ubuntu Pro |
| 18.04 LTS bionic | Not affected |
| 16.04 LTS xenial | Not affected |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

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## Severity score breakdown

CVSS version:

CVSS v4.0

[CVSS v4.0](https://ubuntu.com/security/CVE-2026-41196?format=md)
[CVSS v3.0](https://ubuntu.com/security/CVE-2026-41196?format=md)

**Base score**

9.0 · Critical

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Attack requirements | Present |
  | Privileges required | Low |
  | User interaction | None |
  | Vulnerable system - Confidentiality impact | High |
  | Vulnerable system - Integrity impact | High |
  | Vulnerable system - Availability impact | High |
  | Subsequent system - Confidentiality impact | High |
  | Subsequent system - Integrity impact | High |
  | Subsequent system - Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 9.0 · Critical |
  | Base + Threat score | - |
  | Base + Environmental score | - |
  | Base + Threat + Environmental score | - |

**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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-41196)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-41196)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2026-41196)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2026-41196)

### Related Ubuntu Security Notices (USN)

+ [USN-8732-1](https://usn.ubuntu.com/USN-8732-1)
+ Minetest vulnerability
+ 7 September 2026

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2026-41196>