CVE-2026-105667CWE-306
CVE-2026-105667
High · published October 16, 2026
What it is
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.
The record
Technical detail
- CVSS v3.1
- 7.5 · HIGH
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- CVSS v4.0
- 8.7 · 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
- EPSS
- 0.00210 · 10.6th percentile
- Weakness
- CWE-306 · Missing Authentication for Critical Function
- Published
- 2026-10-16T19:17Z
References (2)
EPSS history
Timeline