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CVE-2026-42214— Improper Control of Generation of Code ('Code Injection') in dail8859/NotepadNext

CVSS 7.8 · High EPSS 0.02% · P6
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I. Basic Information for CVE-2026-42214

Vulnerability Information
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Vulnerability Title
Improper Control of Generation of Code ('Code Injection') in dail8859/NotepadNext
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Notepad Next 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Notepad Next是dail8859个人开发者的一个记事本软件。 Notepad Next 0.14之前版本存在代码注入漏洞，该漏洞源于detectLanguageFromExtension()函数将文件扩展名直接插入Lua脚本而未清理，可能导致攻击者构造包含Lua代码的文件名，在受害者打开文件时自动执行任意命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
dail8859NotepadNext < 0.14 -

II. Public POCs for CVE-2026-42214

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 12757 chars
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III. Intelligence Information for CVE-2026-42214

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IV. Related Vulnerabilities

Same product: NotepadNext
Same vendor: dail8859
Same weakness: CWE-94

V. Comments for CVE-2026-42214

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