MEDIUM 5.3 NVD
CVE-2026-111918
Vikunja from 1.0.0-rc0 before 2.7.0 contains an improper authorization vulnerability in RecalculateTaskPositions that allows authenticated users with zero acces
Vikunja from 1.0.0-rc0 before 2.7.0 contains an improper authorization vulnerability in RecalculateTaskPositions that allows authenticated users with zero accessible projects to write task_positions rows for all tasks instance-wide. Attackers can delete their Inbox after repointing default_project_id, then create empty-filter saved filters to persist cross-tenant references and amplify writes for denial of service.
References
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-fprf-r6rv-xg99
- https://www.vulncheck.com/advisories/vikunja-1.0.0-rc0-before-2.7.0-cross-tenant-task-posi
This medium severity vulnerability with a CVSS score of 5.3 was published on 2026-10-17 via NVD.
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