{"api_version":"1","generated_at":"2026-10-05T20:04:02+00:00","cve":"CVE-2026-105633","urls":{"html":"https://cve.report/CVE-2026-105633","api":"https://cve.report/api/cve/CVE-2026-105633.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-105633","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-105633"},"summary":{"title":"Plane: Issue Attachment Ownership Hijacking via Missing `issue_id` Scope","description":"Plane is an open-source project management tool. Prior to 1.4.0, the V2 issue-attachment PATCH endpoint accepts issue_id in the URL but omits it from the database query. A project member can use an issue_id they control in the URL while targeting another user's attachment by its pk UUID. Because the server matches only pk, workspace, and project_id, it modifies the attachment regardless of the issue_id in the URL. When the attachment is pending and has not been confirmed as uploaded, the PATCH handler sets created_by = request.user and transfers attachment ownership to the attacker. 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