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CVE PROGRAM SOURCE RECORD4.6 Medium

CVE-2026-6539

Notepad++ 8.9.3 Format String Injection via nativeLang.xml

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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Notepad++ Notepad++

Default version status: unaffected

  • 0 to < 8.9.4affected

References