{"id":"CVE-2026-105667","aliases":["EUVD-2026-102895"],"status":"published","title":"J4Care dcm4che Missing Authentication for Critical Function","description":"In the default configuration, the HL7 listener accepts ADT^A40 patient-merge messages without authenticating the sending application. A remote sender can reassign studies and related workflow records from one patient identity to another. The archive's unmerge does not reverse this.","severity":{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00239,"percentile":0.1506,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-306"],"published":"2026-10-16T14:32:22Z","modified":"2026-10-16T20:04:29Z","products":[{"vendor":"j4care","product":"dcm4chee-arc-light"}],"references":[{"url":"https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-288-02"},{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-288-02.json"}],"sources":{"cve":[{"id":"CVE-2026-105667","title":"J4Care dcm4che Missing Authentication for Critical Function","description":"In the default configuration, the HL7 listener accepts ADT^A40 patient-merge messages without authenticating the sending application. A remote sender can reassign studies and related workflow records from one patient identity to another. The archive's unmerge does not reverse this.","status":"published","published":"2026-10-16T14:32:22.216Z","modified":"2026-10-16T15:20:18.221Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:19:56.755658Z"}],"euvd":[{"id":"EUVD-2026-102895","description":"In the default configuration, the HL7 listener accepts ADT^A40 patient-merge messages without authenticating the sending application. A remote sender can reassign studies and related workflow records from one patient identity to another. The archive's unmerge does not reverse this.","status":"published","published":"2026-10-16T14:32:22Z","modified":"2026-10-16T15:20:18Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T17:00:05.229655Z"}],"nvd":[{"id":"CVE-2026-105667","description":"In the default configuration, the HL7 listener accepts ADT^A40 patient-merge messages without authenticating the sending application. A remote sender can reassign studies and related workflow records from one patient identity to another. The archive's unmerge does not reverse this.","status":"published","published":"2026-10-16T15:17:04.26Z","modified":"2026-10-16T20:04:29.76Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:13:00.123071Z"}]}}