Vikunja is an open-source self-hosted task management platform. From 0.24.6 until 2.4.0, DELETE /api/v1/projects/:project/views/:view permits an authenticated user to supply a view identifier from another project while authorizing only against an attacker-controlled project identifier. ProjectView.CanDelete in pkg/models/project_view_permissions.go does not establish that the view belongs to the path project, and ProjectView.Delete in pkg/models/project_view.go continues after the scoped project_views delete affects no rows. Its subsequent deletes select task_buckets and task_positions only by project_view_id, allowing cross-tenant destruction of Kanban assignments and ordering while leaving the victim view and tasks intact. This issue is fixed in version 2.4.0.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-285",
"CWE-639"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55065.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0.24.6"
},
{
"fixed": "2.4.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "6895a7765ef1667be4b79df29549d33b9e1ca9ca"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "v2.4.0",
"range": [
{
"fixed": "907850feae3866ae9b16ea1c7b84a4d77273415a"
}
],
"source": "REFERENCES_TAG"
}
]
}