CVE-2026-33676

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.

• CWE-863

• https://github.com/go-vikunja/vikunja/commit/833f2aec006ac0f6643c41872e45dd79220b9174Patch
• https://github.com/go-vikunja/vikunja/pull/2449Issue Tracking
• https://github.com/go-vikunja/vikunja/security/advisories/GHSA-8cmm-j6c4-rr8vExploit, Vendor Advisory
• https://vikunja.io/changelog/vikunja-v2.2.2-was-releasedRelease Notes
• https://github.com/go-vikunja/vikunja/security/advisories/GHSA-8cmm-j6c4-rr8vExploit, Vendor Advisory

Published

Mar 24, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

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