CVE-2026-42214

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-42214
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.

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/dail8859/NotepadNext/commit/f3ca1b10aca52f05fd7f4f5ebf9b566d6cd95ccc Patch
https://github.com/dail8859/NotepadNext/releases/tag/v0.14 Release Notes
https://github.com/dail8859/NotepadNext/security/advisories/GHSA-m5fq-c9x5-w54g Exploit Mitigation Vendor Advisory
https://github.com/dail8859/NotepadNext/security/advisories/GHSA-m5fq-c9x5-w54g Exploit Mitigation Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:dail8859:notepad_next:*:*:*:*:*:*:*:*
History

12 May 2026, 20:24

Type Values Removed Values Added
First Time Dail8859 notepad Next
Dail8859
CPE cpe:2.3:a:dail8859:notepad_next:*:*:*:*:*:*:*:*
References () https://github.com/dail8859/NotepadNext/commit/f3ca1b10aca52f05fd7f4f5ebf9b566d6cd95ccc - () https://github.com/dail8859/NotepadNext/commit/f3ca1b10aca52f05fd7f4f5ebf9b566d6cd95ccc - Patch
References () https://github.com/dail8859/NotepadNext/releases/tag/v0.14 - () https://github.com/dail8859/NotepadNext/releases/tag/v0.14 - Release Notes
References () https://github.com/dail8859/NotepadNext/security/advisories/GHSA-m5fq-c9x5-w54g - () https://github.com/dail8859/NotepadNext/security/advisories/GHSA-m5fq-c9x5-w54g - Exploit, Mitigation, Vendor Advisory

07 May 2026, 20:16

Type Values Removed Values Added
References () https://github.com/dail8859/NotepadNext/security/advisories/GHSA-m5fq-c9x5-w54g - () https://github.com/dail8859/NotepadNext/security/advisories/GHSA-m5fq-c9x5-w54g -

07 May 2026, 19:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-05-07 19:16

Updated : 2026-05-12 20:24

NVD link : CVE-2026-42214

Mitre link : CVE-2026-42214

CVE.ORG link : CVE-2026-42214

JSON object : View

Products Affected

dail8859

  • notepad_next
CWE
CWE-94

Improper Control of Generation of Code ('Code Injection')