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CVE-2026-105786— Joplin: Unauthenticated account takeover via an attacker-chosen application-authorisation identifier

Quick assessment

Affected
laurent22 joplin
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Joplin 是一款开源的笔记和待办事项应用程序，它将笔记和列表组织到笔记本中。在版本 3.7.13 之前， 接受由调用方选择的身份验证标识符， 通过一个通用的同意页面将该标识符与已登录的用户绑定，而公共端点 在没有进行身份验证或未绑定赎回方的情况下，将该标识符传递给 。攻击者可以诱使受害者批准攻击者的标识符，从而获得持久的应用程序 ID 和密码，并利用这些凭证换取受害者的会话权限，进而完全读写同步数据。此漏洞已在版本 3.7.13 中修复。

CVSS 8.5 · High

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-105786

Vulnerability Information
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Vulnerability Title
Joplin: Unauthenticated account takeover via an attacker-chosen application-authorisation identifier
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
laurent22 joplin < 3.7.13 -

II. Public POCs for CVE-2026-105786

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III. Intelligence Information for CVE-2026-105786

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Other References for CVE-2026-105786 (4)

Same Patch Batch · laurent22 · 2026-10-05 · 4 CVEs total

CVE-2026-105783 8.0 HIGH Joplin Web Clipper pairing allows cross-origin theft of a permanent API token
CVE-2026-105785 4.8 MEDIUM Joplin Server password reset accepts tokens issued for unrelated purposes
CVE-2026-105784 4.6 MEDIUM Joplin whiteboard card rendering allows CSS injection into application chrome

IV. Related Vulnerabilities

Same product: joplin
Same vendor: laurent22
Same weakness: CWE-306

V. Comments for CVE-2026-105786

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