CVE-2026-41196

Name	CVE-2026-41196
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).
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
luanti (PTS)	trixie (security)	5.10.0+dfsg-5+deb13u1	fixed
	forky, trixie	5.10.0+dfsg-5	vulnerable
	sid	5.15.1+dfsg-2	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
luanti	source	trixie	5.10.0+dfsg-5+deb13u1
luanti	source	(unstable)	(unfixed)

Notes

https://github.com/luanti-org/luanti/security/advisories/GHSA-g596-mf82-w8c3
https://github.com/luanti-org/luanti/commit/8a929dfb97aa08337f49ba1bb96a56d6557dc896 (master)
https://github.com/luanti-org/luanti/commit/53cef183e2a85a4daff84ac1a9a7946f940da8f8 (5.15.2)
Duplicate of CVE-2026-40959 (CNA contacted)