CVE-2026-35598
Medium · 4.3CVSS
4.3
EPSS
0.3%
Published
Apr 10, 2026
CISA due date
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The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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