{"cve":"CVE-2026-55065","nvd":{"published":"2026-08-28T20:18:23.757","modified":"2026-09-09T21:09:13.080","status":"Deferred","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","score":8.1},"cwes":["CWE-285","CWE-639"],"references":["https://github.com/go-vikunja/vikunja/commit/6895a7765ef1667be4b79df29549d33b9e1ca9ca","https://github.com/go-vikunja/vikunja/pull/3239","https://github.com/go-vikunja/vikunja/releases/tag/v2.4.0","https://github.com/go-vikunja/vikunja/security/advisories/GHSA-gg93-x632-9ccv","https://github.com/go-vikunja/vikunja/security/advisories/GHSA-gg93-x632-9ccv"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:50.842544443+00:00"},"epss":{"cve":"CVE-2026-55065","score":0.00504,"percentile":0.43122,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-gg93-x632-9ccv","url":"https://osv.dev/vulnerability/GHSA-gg93-x632-9ccv","summary":"Vikunja vulnerable to Improper Authorization and Authorization Bypass Through User-Controlled Key","modified":"2026-09-02T19:55:47.539526064Z","packages":[{"ecosystem":"Go","name":"code.vikunja.io/api","purl":"pkg:golang/code.vikunja.io/api","ranges":[">=0.24.6 <2.4.0"],"fixed":["2.4.0"]}]},{"id":"GO-2026-6313","url":"https://osv.dev/vulnerability/GO-2026-6313","summary":"Vikunja vulnerable to Improper Authorization and Authorization Bypass Through User-Controlled Key in code.vikunja.io/api","modified":"2026-09-02T19:45:14.030309195Z","packages":[{"ecosystem":"Go","name":"code.vikunja.io/api","purl":"pkg:golang/code.vikunja.io/api","ranges":[">=0.24.6"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}