CVE-2026-85995Notepad++: Authenticode verification bypass allows modified updater execution
Updated under an hour ago ()
Does this affect you?
It affects notepad-plus-plus. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
Notepad++ is a free and open-source source code editor. From 8.9.7 until 8.9.8, the Notepad++ updater and signature verification path can accept a modified GUP.exe file whose embedded certificate metadata remains present even though its Authenticode digest is invalid. An attacker who can replace or plant the updater-related file can cause Notepad++ to launch attacker-modified code when a user triggers the updater path, but the issue does not provide remote code execution by itself. This issue is fixed in version 8.9.8.
- CVSS
- 7.3 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-347
- 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
- Sep 22, 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 8.9.8 | CNA record |
References
- https://github.com/notepad-plus-plus/notepad-plus-plus/security/advisories/GHSA-cx87-7hhq-m2j3x-refsource-confirm
- https://github.com/notepad-plus-plus/notepad-plus-plus/commit/9edf40f725ce62b26c454905e39f0f7fdbbb3ffax-refsource-misc
- https://github.com/notepad-plus-plus/notepad-plus-plus/releases/tag/v8.9.8x-refsource-misc
- https://notepad-plus-plus.org/news/v898-releasedx-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.