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CVE-2026-57233

Notepad++: Path Traversal (Zip Slip) in WinGup Plugin Extraction PUBLISHED

Description (CNA)

Notepad++ is a free and open-source source code editor. Prior to 8.9.7, the WinGup decompress function joins untrusted ZIP entry names to unzipDestTo without canonical containment validation, allowing an entry such as ../mimeTools/mimeTools.dll to overwrite a DLL in a sibling plugin directory and execute attacker-controlled code when Notepad++ next loads that plugin. This issue is fixed in version 8.9.7.

Affected (CNA)

Vendor / productVersions
notepad-plus-plus / notepad-plus-plusaffected < 8.9.7

CWE

CWE-22

References

ADP enrichment

CISA-ADP

No English description supplied.