Medium 4.3Published Apr 10, 2026

CVE-2026-35598Vikunja is an open-source self-hosted task management platform.

Updated under an hour ago (2026-10-19 10:23 UTC)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for vikunja

Exploited in the last 30 days

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: 4.3 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jun 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

vikunja vikunja vikunja:vikunja	before 2.3.0	NVD

References

https://github.com/go-vikunja/vikunja/commit/879462d717351fe5d276ddec5246bdec31b41661patch
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-x46xexploit, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.