CVE-2026-105786: Missing Auth

Description

Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.7.13, packages/server/src/models/ApplicationModel.ts accepts a caller-chosen application authorization identifier, applications/:id/confirm binds that identifier to a logged-in user through a generic consent page, and the public packages/server/src/routes/api/application_auth.ts endpoint passes it to ApplicationModel.createAppPassword without authenticating or binding the redeemer. An attacker can cause a victim to approve the attacker's identifier, redeem a durable application ID and password, and exchange the credential for a victim session with full read and write access to synchronized data. This vulnerability is fixed in 3.7.13.

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Weakness Type (CWE)

CWE-306 Missing Authentication

CWE-330 CWE-330

CWE-863 Incorrect Authorization

References

Other References

https://github.com/laurent22/joplin/commit/1a0a50afc96d4c228c736293d53de96aa23f4d00 https://github.com/laurent22/joplin/pull/16270 https://github.com/laurent22/joplin/releases/tag/v3.7.13 https://github.com/laurent22/joplin/security/advisories/GHSA-435m-gr6q-2fg6

Frequently Asked Questions

What is CVE-2026-105786? +

Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.7.13, packages/server/src/models/ApplicationModel.ts accepts a caller-chosen application authorization identifier, applications/:id/confirm binds that identifier to a logged-in user through a generic consent page, and the public packages/server/src/routes/api/application_auth.ts endpoint passes it to ApplicationModel.createAppPassword without authenticating or binding the redeemer. An attacker can cause a victim to approve the attacker's identifier, redeem a durable application ID and password, and exchange the credential for a victim session with full read and write access to synchronized data. This vulnerability is fixed in 3.7.13.

How do I check if I'm vulnerable to CVE-2026-105786? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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