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.
History

Fri, 17 Apr 2026 22:00:00 +0000

Type Values Removed Values Added
First Time appeared Vikunja
Vikunja vikunja
CPEs cpe:2.3:a:vikunja:vikunja:*:*:*:*:*:*:*:*
Vendors & Products Vikunja
Vikunja vikunja

Tue, 14 Apr 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 13 Apr 2026 13:00:00 +0000

Type Values Removed Values Added
First Time appeared Go-vikunja
Go-vikunja vikunja
Vendors & Products Go-vikunja
Go-vikunja vikunja

Fri, 10 Apr 2026 16:30:00 +0000

Type Values Removed Values Added
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.
Title Vikunja has Missing Authorization on CalDAV Task Read
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-04-10T16:04:32.083Z

Updated: 2026-04-14T14:20:44.249Z

Reserved: 2026-04-03T21:25:12.162Z

Link: CVE-2026-35598

cve-icon Vulnrichment

Updated: 2026-04-14T14:20:32.106Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-10T17:17:03.370

Modified: 2026-04-17T21:57:42.097

Link: CVE-2026-35598

cve-icon Redhat

No data.