CVE-2026-85288

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.

• https://github.com/notepad-plus-plus/notepad-plus-plus/commit/4cd74cb9347b9c6caaab17d999e24fc9ed228ff7
• https://github.com/notepad-plus-plus/notepad-plus-plus/releases/tag/v8.9.8
• https://github.com/notepad-plus-plus/notepad-plus-plus/security/advisories/GHSA-759j-g8j4-867p
• https://github.com/notepad-plus-plus/notepad-plus-plus/security/advisories/GHSA-759j-g8j4-867p

• https://github.com/notepad-plus-plus/notepad-plus-plus/commit/4cd74cb9347b9c6caaab17d999e24fc9ed228ff7
• https://github.com/notepad-plus-plus/notepad-plus-plus/releases/tag/v8.9.8
• https://github.com/notepad-plus-plus/notepad-plus-plus/security/advisories/GHSA-759j-g8j4-867p
• https://notepad-plus-plus.org/news/v898-released
• https://github.com/notepad-plus-plus/notepad-plus-plus/security/advisories/GHSA-759j-g8j4-867p

• UNSCOREDCVE-2025-12999PoC
• HIGHCVE-2025-14754
• LOWCVE-2025-71424PoC
• HIGHCVE-2026-100368PoC
• UNSCOREDCVE-2026-100382
• HIGHCVE-2026-100559PoC
• HIGHCVE-2026-100599PoC
• HIGHCVE-2026-100676PoC

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