cvedb.io
CVE-2026-42214
HIGH · CVSS 7.8
EPSS exploitation probability: 0%
Published 2026-05-07T19:16:01.497 · Last modified 2026-06-17T10:47:31.360

Summary

Notepad Next is a cross-platform, reimplementation of Notepad++. Prior to version 0.14, NotepadNext's detectLanguageFromExtension() function interpolates a file's extension directly into a Lua script without sanitization. An attacker can craft a filename whose extension contains Lua code, which executes automatically when the victim opens the file in NotepadNext. Because luaL_openlibs() is called unconditionally, the full os, io, and package libraries are available to the injected code, enabling arbitrary command execution. This issue has been patched in version 0.14.

Affected products

dail8859 — notepad_next

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.