---
id: CVE-2026-85995
title: Notepad++ is a free and open-source source code editor
summary: >-
  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 …
severity: high
cvss: 7.3
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-347
vendor: notepad-plus-plus
product: notepad-plus-plus
affected:
  - notepad-plus-plus < 8.9.8
published: '2026-09-22'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T18:28:25.093'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-85995'
references:
  - url: >-
      https://github.com/notepad-plus-plus/notepad-plus-plus/commit/9edf40f725ce62b26c454905e39f0f7fdbbb3ffa
    label: security-advisories@github.com
  - url: 'https://github.com/notepad-plus-plus/notepad-plus-plus/releases/tag/v8.9.8'
    label: security-advisories@github.com
  - url: >-
      https://github.com/notepad-plus-plus/notepad-plus-plus/security/advisories/GHSA-cx87-7hhq-m2j3
    label: security-advisories@github.com
  - url: 'https://notepad-plus-plus.org/news/v898-released'
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
epss: 0.00124
epssPercentile: 0.01845
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-22T17:35:40.027541Z'
ingestedAt: '2026-09-22T18:08:12.489Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.