CVE-2026-49450
HighCVSS 7.1Exploitation Probability (EPSS)
Low risk7th percentile - higher than 7% of all known CVEs
Summary
Joplin Desktop for Windows prior to 3.7.2 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. This issue is fixed in version 3.7.2.
Risk Assessment
Successful exploitation runs attacker-controlled code with the user's privileges and can compromise notes, credentials, and local data. This affects organizations where users install Joplin Desktop updates over a network potentially controlled by an attacker.
Recommendation
Update Joplin Desktop to version 3.7.2 or later on all Windows workstations. Ensure update distribution channels are secure and authenticated to prevent replacement of metadata and installers.
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Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

