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Description
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.
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Title: joplin de laurent22, Description: Joplin es una aplicación de código abierto para tomar notas y tareas pendientes que organiza notas y listas en cuadernos. Las versiones 3.6.14 y anteriores contienen una vulnerabilidad de Denegación de Servicio (DoS) en la funcionalidad de entrada del título debido a una falta de validación de longitud adecuada. Esta falla permite a un atacante causar un error de falta de memoria (OOM) y la terminación subsiguiente del programa al insertar una cadena excesivamente larga en el título de una nota. Esto puede ser activado ya sea a través de la entrada directa de la interfaz de usuario (UI) o programáticamente a través de la API del servicio web local después de comprometer un token de autenticación. Hay 2 métodos principales de explotación: a través de la Entrada de Interfaz de Usuario (UI), y la API del Servicio Web Local. Un usuario local puede escribir o pegar directamente una cadena extremadamente larga en el campo del título al crear o editar una nota. Joplin ejecuta un servicio web local (típicamente en el puerto 41184) que permite la interacción programática, como crear o editar notas a través de llamadas a la API HTTP. Si un atacante logra exfiltrar o comprometer el token de autenticación del usuario (por ejemplo, a través de malware en el sistema local, u otras vulnerabilidades locales), entonces puede enviar una solicitud HTTP POST manipulada a esta API local. Al incluir una cadena excesivamente larga en el parámetro del título de esta solicitud, la aplicación intentará asignar una cantidad ilimitada de memoria. Este problema ha sido parcheado en la versión 3.7.1.
New CVE Received from GitHub, Inc.5/19/2026 5:16:40 PM
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Description
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.