Vulnerability Description
Notepad++ is a free and open-source source code editor. Prior to 8.9.8, the Folder as Workspace Run by system action in Notepad++ can resolve a different sibling file than the file selected by the user. When an attacker places a command script whose name is the selected text-file path with .cmd appended, and the user invokes Run by system on the text file on Windows 10 or Windows 11, Notepad++ can execute the sibling script as the current user instead of opening the selected file. This issue is fixed in version 8.9.8.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/notepad-plus-plus/notepad-plus-plus/commit/00fa5df0da1d4f6b33
- 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-
- https://notepad-plus-plus.org/news/v898-released
- https://github.com/notepad-plus-plus/notepad-plus-plus/security/advisories/GHSA-
FAQ
What is CVE-2026-77605?
CVE-2026-77605 is a vulnerability with a CVSS score of 7.8 (HIGH). Notepad++ is a free and open-source source code editor. Prior to 8.9.8, the Folder as Workspace Run by system action in Notepad++ can resolve a different sibling file than the file selected by the use...
How severe is CVE-2026-77605?
CVE-2026-77605 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-77605?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.