VULNERABILITY INTELLIGENCE

CVE-2026-35598

CVSS score4.3 MEDIUM

EPSS probability0.22%

CISA KEVNot currently listed

Published2026-04-10

Last modified2026-10-26

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

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.

Weakness classification

security-advisories@github.com: CWE-862

Primary references

security-advisories@github.com — Patch
security-advisories@github.com — Issue Tracking
security-advisories@github.com — Release Notes
security-advisories@github.com — Exploit, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0 — Exploit, Vendor Advisory