CVE-2026-41196
CVE-2026-41196 is a critical-severity vulnerability in Minetest with a CVSS 3.x base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.
Key facts
- Severity: Critical (CVSS 3.x base score 10.0)
- CVSS v4: 9.0
- EPSS exploit prediction: 0% (31st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-25154
- Weakness: CWE-94
- Affected product: Minetest
- Published:
- Last modified:
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).
Frequently asked questions
- What is CVE-2026-41196?
- 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).
- How severe is CVE-2026-41196?
- CVE-2026-41196 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-41196 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-41196?
- CVE-2026-41196 affects Minetest. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-41196?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2026-41196 have an EU (EUVD) identifier?
- Yes. CVE-2026-41196 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25154.
- When was CVE-2026-41196 published?
- CVE-2026-41196 was published on 2026-04-23 and last updated on 2026-06-17.
References
- https://github.com/luanti-org/luanti/commit/8a929dfb97aa08337f49ba1bb96a56d6557dc896
- https://github.com/luanti-org/luanti/security/advisories/GHSA-g596-mf82-w8c3
Affected products (1)
- cpe:2.3:a:minetest:minetest:*:*:*:*:*:*:*:*
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