Description
Notepad++ 8.9.3 contains a format string injection vulnerability in the Find Results panel handler that allows attackers to cause denial of service and information disclosure by crafting a malicious nativeLang.xml language pack file. Attackers can distribute a poisoned language pack through community channels that triggers format string interpretation when a user performs search operations, leading to access violations and potential leakage of stack or register contents.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Notepad++ | Notepad++ | < 8.9.4 | 8.9.4 |
Advisories 1
- WID-SEC-2026-1282 Notepad++: Mehrere Schwachstellen ermöglichen DoS oder die Offenlegung von Informationen BSI CERT-Bund (WID) · May 3, 2026