laurent22 joplin up to 3.7.0 Local Web Service API Title allocation of resources

Summaryinfo

A vulnerability labeled as problematic has been found in laurent22 joplin up to 3.7.0. Affected by this vulnerability is an unknown functionality of the component Local Web Service API. Executing a manipulation of the argument Title can lead to allocation of resources. This vulnerability appears as CVE-2025-57798. The attack requires local access. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in laurent22 joplin up to 3.7.0 and classified as problematic. This vulnerability affects an unknown part of the component Local Web Service API. The manipulation of the argument title with an unknown input leads to a allocation of resources vulnerability. The CWE definition for the vulnerability is CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. As an impact it is known to affect availability. CVE summarizes:

Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Versions 3.6.14 and prior contain a Denial of Service (DoS) vulnerability in the title input functionality due to a lack of proper length validation. This flaw allows an attacker to cause an Out Of Memory (OOM) error and subsequent program termination by inserting an excessively long string into a note's title. This can be triggered either through direct user interface (UI) input or programmatically via the local web service API after compromising an authentication token. There are 2 primary methods of exploitation: via User Interface (UI) Input, and the Local Web Service API. A local user can directly type or paste an extremely long string into the title field when creating or editing a note Joplin runs a local web service (typically on port 41184) that allows programmatic interaction, such as creating or editing notes via HTTP API calls. If an attacker manages to exfiltrate or compromise the user's authentication token (e.g., through malware on the local system, or other local vulnerabilities), they can then send a crafted HTTP POST request to this local API. By including an excessively long string in the title parameter of this request, the application will attempt to allocate an unbounded amount of memory. This issue has been patched in version 3.7.1.

The advisory is available at github.com. This vulnerability was named CVE-2025-57798 since 08/20/2025. The exploitation appears to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit.

Upgrading to version 3.7.1 eliminates this vulnerability.

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Productinfo

Vendor

• laurent22

Name

• joplin

Version

• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5
• 3.6
• 3.7.0

Website

• Product: https://github.com/laurent22/joplin/

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