{"action":"Upgrade code.vikunja.io/api to 2.6.0 or later.","affected":[{"fixed":"2.6.0","introduced":"0"}],"component":"code.vikunja.io/api","cve_ids":[],"ecosystem":"Go","exploited":false,"fixed_versions":["2.6.0"],"ghsa_id":"GHSA-g38j-7v97-x298","id":"tcs_01M5JJQ5X7YXH12B5RTA7VSX44","modified_at":"2026-10-19T21:41:23.832015437Z","published_at":"2026-10-09T20:54:43Z","references":["https://osv.dev/vulnerability/GHSA-g38j-7v97-x298","https://github.com/go-vikunja/vikunja/security/advisories/GHSA-g38j-7v97-x298","https://github.com/go-vikunja/vikunja/pull/3688","https://github.com/go-vikunja/vikunja/commit/077dc4de79ce6f1ab59215a2c7bf9b30423685f2","https://github.com/go-vikunja/vikunja","https://github.com/go-vikunja/vikunja/releases/tag/v2.6.0"],"severity":{"label":"medium"},"sources":[{"source":"osv","source_id":"GHSA-g38j-7v97-x298","url":"https://osv.dev/vulnerability/GHSA-g38j-7v97-x298"}],"summary":"Vikunja: CalDAV relation creation bypasses TaskRelation.CanCreate, allowing an unauthorized write into any task by known UID"}