CVE-2026-57233Notepad++: Path Traversal (Zip Slip) in WinGup Plugin Extraction
Updated under an hour ago ()
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It affects notepad-plus-plus. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
- Weakness (CWE)
- CWE-22
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Awaiting Analysis
- Record last updated
- Aug 18, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
notepad-plus-plus notepad-plus-plus notepad_plus_plus:notepad_plus_plus (from the name) | before 8.9.7 | CNA record |
References
- https://github.com/notepad-plus-plus/notepad-plus-plus/security/advisories/GHSA-hjxw-84rf-wg5rx-refsource-confirm
- https://github.com/notepad-plus-plus/wingup/pull/106x-refsource-misc
- https://github.com/notepad-plus-plus/wingup/commit/7670296a5c7fdec624e0a45dbde51059a7d735a8x-refsource-misc
- https://github.com/notepad-plus-plus/notepad-plus-plus/releases/tag/v8.9.7x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.