Is CVE-2026-111918 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-111918?

CVE-2026-111918 has a CVSS v3 severity of MEDIUM (5.4).

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CVE-2026-111918

Description

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.