CVE-2026-41196: Luanti (formerly Minetest) is an open source voxel game-creation platform

This month

CRITICAL 10.0REMOTEUPGRADE

CVE-2026-41196 is a critical-severity flaw (CVSS 10.0) affecting minetest. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 69%)
CISA exploited list	No
Weakness	CWE-94
Published	2026-04-23
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: minetest

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-23 02:16 UTCPublished CVE record published
2026-06-17 10:46 UTCUpdated Record last modified

minetest minetest UPGRADE

Affected: >= 5.0.0 and < 5.15.2

Fixed in: 5.15.2

Safe to downgrade to: a release before 5.0.0

1. Check installed version

apt-cache policy minetest || rpm -q minetest || minetest --version

2. UPGRADE to 5.15.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade minetest

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade minetest

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 5.0.0 (Debian / Ubuntu)

apt-cache madison minetest sudo apt install minetest=<VERSION_BEFORE_5.0.0> sudo apt-mark hold minetest

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list minetest sudo dnf downgrade minetest-<VERSION_BEFORE_5.0.0> sudo dnf versionlock add minetest

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-41196?

minetest: upgrade to 5.15.2. Exact commands for each OS are on this page.

Is CVE-2026-41196 being exploited?

CVE-2026-41196 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-41196 affect?

CVE-2026-41196 affects minetest. Severity is critical (CVSS 10.0). 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 fil

How urgent is CVE-2026-41196?

Priority 48/100. Critical severity; Remotely exploitable, no login, no user action

References

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