Vulnerability Description
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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Vikunja | Vikunja | < 2.3.0 |
Related Weaknesses (CWE)
References
- https://github.com/go-vikunja/vikunja/commit/879462d717351fe5d276ddec5246bdec31bPatch
- https://github.com/go-vikunja/vikunja/pull/2579Issue Tracking
- https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0Release Notes
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-48ch-p4gq-x46xExploitVendor Advisory
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-48ch-p4gq-x46xExploitVendor Advisory
FAQ
What is CVE-2026-35598?
CVE-2026-35598 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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 au...
How severe is CVE-2026-35598?
CVE-2026-35598 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-35598?
Check the references section above for vendor advisories and patch information. Affected products include: Vikunja Vikunja.