CVE-2026-35598

Name: CVE-2026-35598
Creator: NVD / NIST
Published: 2026-04-10T17:17:03.37+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.22%

Last modified Jun 17, 2026

CVE-2026-35598 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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. EPSS estimates a 0.22% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

0.22%

12.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-862

Affected Software

Vendor	Product	Versions
Vikunja	Vikunja	< 2.3.0

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
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-48ch-p4gq-x46xExploit, Vendor Advisory

Timeline

Published: Apr 10, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-35598?

How severe is CVE-2026-35598?

CVE-2026-35598 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.22% probability of exploitation in the next 30 days.

How do I fix CVE-2026-35598?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-35598?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST