CVE-2026-35598

MEDIUM EPSS 12.0%
Published Apr 10, 20262mo ago · Modified Jun 17, 20261w ago
4.3 CVSS 3.1
Medium
Find Similar
Published Apr 10, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
4.3
Exploitability
2.8
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
12.0% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-862 Missing Authorization Authorization

Affected Products 1

VendorProductVersionRange
vikunjavikunja* <2.3.0

References 4

  • github.com https://github.com/go-vikunja/vikunja/commit/879462d717351fe5d276ddec5246bdec31b41661
    Patch
  • github.com https://github.com/go-vikunja/vikunja/pull/2579
    Issue Tracking
  • github.com https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0
    Release Notes
  • github.com https://github.com/go-vikunja/vikunja/security/advisories/GHSA-48ch-p4gq-x46x
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/go-vikunja/vikunja/commit/879462d717351fe5d276ddec5246bdec31b41661
    Patch