Vulnerability Description
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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/laurent22/joplin/commit/853659edf575c4f526c2b196e0629462aee9d
- https://github.com/laurent22/joplin/pull/15539
- https://github.com/laurent22/joplin/security/advisories/GHSA-9wp7-hr9m-3273
- https://github.com/laurent22/joplin/security/advisories/GHSA-9wp7-hr9m-3273
FAQ
What is CVE-2026-49450?
CVE-2026-49450 is a vulnerability with a CVSS score of 7.1 (HIGH). 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/packa...
How severe is CVE-2026-49450?
CVE-2026-49450 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-49450?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.