CVE-2026-105667 PUBLISHED

J4Care dcm4che Missing Authentication for Critical Function

Assigner: icscert
Reserved: 12.10.2026 Published: 16.10.2026 Updated: 16.10.2026

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.

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS Score: 7.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	None

CVSS 3.1

CVSS 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
CVSS Score: 8.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	J4Care
Product	dcm4chee-arc-light
Versions	Default: unaffected Version 5.35.1 is affected Version 5.35.2 is unaffected

Solutions

J4Care has provided a fix for the vulnerability. J4Care recommends users implement release 5.35.2 or later.

CVE-2026-105667 PUBLISHED

J4Care dcm4che Missing Authentication for Critical Function

Metrics

Product Status

Solutions

Credits

References

Problem Types