{"id":"CVE-2026-55065","summary":"Vikunja: Improper Authorization and Authorization Bypass Through User-Controlled Key in code.vikunja.io/api","details":"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.","aliases":["GHSA-gg93-x632-9ccv"],"modified":"2026-08-30T03:46:52.475289181Z","published":"2026-08-28T16:40:27.706Z","database_specific":{"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"},"references":[{"type":"WEB","url":"https://github.com/go-vikunja/vikunja/releases/tag/v2.4.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55065.json"},{"type":"ADVISORY","url":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-gg93-x632-9ccv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55065"},{"type":"FIX","url":"https://github.com/go-vikunja/vikunja/commit/6895a7765ef1667be4b79df29549d33b9e1ca9ca"},{"type":"FIX","url":"https://github.com/go-vikunja/vikunja/pull/3239"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/go-vikunja/vikunja","events":[{"introduced":"c934124b88e6ca239377ca39d32645b64b17e3de"},{"fixed":"6895a7765ef1667be4b79df29549d33b9e1ca9ca"},{"fixed":"907850feae3866ae9b16ea1c7b84a4d77273415a"}],"database_specific":{"extracted_events":[{"introduced":"0.24.6"},{"fixed":"2.4.0"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55065.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"}]}