CVE-2026-35598

Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the CalDAV GetResource and GetResourcesByList methods fetch tasks by UID from the database without verifying that the authenticated user has access to the task's project. Any authenticated CalDAV user who knows (or guesses) a task UID can read the full task data from any project on the instance. This vulnerability is fixed in 2.3.0.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/go-vikunja/vikunja/commit/879462d717351fe5d276ddec5246bdec31b41661	Patch
https://github.com/go-vikunja/vikunja/pull/2579	Issue Tracking
https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0	Release Notes
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-48ch-p4gq-x46x	Exploit Vendor Advisory
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-48ch-p4gq-x46x	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:vikunja:vikunja:*:*:*:*:*:*:*:*

History

26 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Vikunja es una plataforma de gestión de tareas de código abierto y autoalojada. Antes de la versión 2.3.0, los métodos CalDAV GetResource y GetResourcesByList recuperan tareas por UID de la base de datos sin verificar que el usuario autenticado tenga acceso al proyecto de la tarea. Cualquier usuario CalDAV autenticado que conozca (o adivine) un UID de tarea puede leer los datos completos de la tarea de cualquier proyecto en la instancia. Esta vulnerabilidad se corrigió en la versión 2.3.0.

Information

Published : 2026-04-10 17:17

Updated : 2026-10-26 21:10

NVD link : CVE-2026-35598

Mitre link : CVE-2026-35598

CVE.ORG link : CVE-2026-35598

JSON object : View

Products Affected

vikunja

vikunja

CWE

CWE-862

Missing Authorization

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