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.
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Fixes
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References
History
Mon, 17 Aug 2026 20:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Notepad++: Path Traversal (Zip Slip) in WinGup Plugin Extraction | |
| Weaknesses | CWE-22 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-08-17T20:10:37.698Z
Reserved: 2026-06-24T02:21:33.811Z
Link: CVE-2026-57233
No data.
Status : Received
Published: 2026-08-17T20:16:44.453
Modified: 2026-08-17T20:16:44.453
Link: CVE-2026-57233
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OpenCVE Enrichment
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Weaknesses