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LuaJIT with Luaanti 5 can be hacked through a malicious module

DEBIAN-CVE-2026-40959
Summary

A security issue affects LuaJIT users who also use Luaanti 5. If a malicious module is created, it could potentially allow an attacker to bypass the sandbox and gain unauthorized access. If you use Luaanti 5 with LuaJIT, update to version 5.15.2 or later to fix this issue.

What to do

No fix is available yet. Check with your software vendor for updates.

Affected software
Ecosystem VendorProductAffected versions
Debian:13 debian luanti All versions
Debian:14 debian luanti All versions
Original title
Luanti 5 before 5.15.2, when LuaJIT is used, allows a Lua sandbox escape via a crafted mod.
Original description
Luanti 5 before 5.15.2, when LuaJIT is used, allows a Lua sandbox escape via a crafted mod.
Published: 16 Apr 2026 · Updated: 16 Apr 2026 · First seen: 16 Apr 2026