6.5

CVE-2026-33676

Exploit

Vikunja has Cross-Project Information Disclosure via Task Relations — Missing Authorization Check on Related Task Read

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, when the Vikunja API returns tasks, it populates the `related_tasks` field with full task objects for all related tasks without checking whether the requesting user has read permission on those tasks' projects. An authenticated user who can read a task that has cross-project relations will receive full details (title, description, due dates, priority, percent completion, project ID, etc.) of tasks in projects they have no access to. Version 2.2.1 patches the issue.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Vikunja ≫ Vikunja Version < 2.2.1
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.33% 0.245
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 6.5 2.8 3.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE-863 Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

https://vikunja.io/changelog/vikunja-v2.2.2-was-released
Release Notes
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-8cmm-j6c4-rr8v
Vendor Advisory
Exploit
https://github.com/go-vikunja/vikunja/pull/2449
Issue Tracking
https://github.com/go-vikunja/vikunja/commit/833f2aec006ac0f6643c41872e45dd79220b9174
Patch