Notepad++ is a free and open-source source code editor. Prior to 8.9.8, Notepad++ incompletely enforces shortcuts.xml HMAC validation because WM_MACRODLGRUNMACRO, the Run a Macro Multiple Times entry point, calls macroPlayback() without the validation used by command(). A tampered shortcuts.xml macro that is blocked through the Macro menu or a shortcut key can therefore execute through the multi-run dialog and invoke internal Notepad++ commands, including commands that launch external programs, in the current user context. This issue is fixed in version 8.9.8.

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History

Tue, 22 Sep 2026 19:15:00 +0000

Type Values Removed Values Added
First Time appeared Notepad-plus-plus
Notepad-plus-plus notepad++
Vendors & Products Notepad-plus-plus
Notepad-plus-plus notepad++

Tue, 22 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Description Notepad++ is a free and open-source source code editor. Prior to 8.9.8, Notepad++ incompletely enforces shortcuts.xml HMAC validation because WM_MACRODLGRUNMACRO, the Run a Macro Multiple Times entry point, calls macroPlayback() without the validation used by command(). A tampered shortcuts.xml macro that is blocked through the Macro menu or a shortcut key can therefore execute through the multi-run dialog and invoke internal Notepad++ commands, including commands that launch external programs, in the current user context. This issue is fixed in version 8.9.8.
Title Notepad++: Shortcuts.xml macro HMAC bypass still reachable via the "Run a Macro Multiple Times" dialog
Weaknesses CWE-345
CWE-693
CWE-78
References
Metrics cvssV3_1

{'score': 6.7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-09-22T17:11:47.937Z

Reserved: 2026-09-03T16:37:49.262Z

Link: CVE-2026-85288

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-22T18:17:23.373

Modified: 2026-09-22T18:17:23.373

Link: CVE-2026-85288

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-22T20:00:13Z

Weaknesses