High 8.1Published Aug 17, 2026

CVE-2026-57233Notepad++: Path Traversal (Zip Slip) in WinGup Plugin Extraction

Updated under an hour ago (Oct 26, 2026, 7:10 PM ET)

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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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Every CVE for notepad-plus-plus

Exploited in the last 30 days

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

Affected products

notepad-plus-plus notepad-plus-plus notepad_plus_plus:notepad_plus_plus (from the name)	before 8.9.7	CNA record

References

References

https://github.com/notepad-plus-plus/notepad-plus-plus/security/advisories/GHSA-hjxw-84rf-wg5r	x-refsource-confirm
https://github.com/notepad-plus-plus/wingup/pull/106	x-refsource-misc
https://github.com/notepad-plus-plus/wingup/commit/7670296a5c7fdec624e0a45dbde51059a7d735a8	x-refsource-misc
https://github.com/notepad-plus-plus/notepad-plus-plus/releases/tag/v8.9.7	x-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.