---
id: CVE-2026-49450
title: >-
  Joplin is an open source note-taking and to-do application that organises
  notes and lists into notebooks
summary: >-
  Joplin is an open source note-taking and to-do application that organises
  notes and lists into notebooks. Prior to 3.7.2, Joplin Desktop for Windows
  omits publisherName from packages/app-desktop/package.json, so the generated
  app-update.…
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-345
  - CWE-353
  - CWE-494
vendor: laurent22
product: joplin
affected:
  - joplin < 3.7.2
published: '2026-09-21'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T18:30:42.573'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-49450'
references:
  - url: >-
      https://github.com/laurent22/joplin/commit/853659edf575c4f526c2b196e0629462aee9df28
    label: security-advisories@github.com
  - url: 'https://github.com/laurent22/joplin/pull/15539'
    label: security-advisories@github.com
  - url: >-
      https://github.com/laurent22/joplin/security/advisories/GHSA-9wp7-hr9m-3273
    label: security-advisories@github.com
  - url: >-
      https://github.com/laurent22/joplin/security/advisories/GHSA-9wp7-hr9m-3273
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00182
epssPercentile: 0.06841
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-22T13:12:10.913874Z'
ingestedAt: '2026-09-21T21:53:57.417Z'
---

## Overview

Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.7.2, Joplin Desktop for Windows omits publisherName from packages/app-desktop/package.json, so the generated app-update.yml causes NsisUpdater.verifySignature() to skip comparison of a downloaded update's Authenticode signer with Joplin's signer. An attacker who controls the update delivery path can replace the update metadata and installer, and the client accepts an installer signed by another publisher or left unsigned after the user approves installation. Successful exploitation runs attacker-controlled code with the user's privileges and can compromise notes, credentials, and local data. This issue is fixed in version 3.7.2.

## Remediation

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