Vulnerability · Published Oct 16, 2026 · Assigned by icscert
CVE-2026-105667J4Care dcm4che Missing Authentication for Critical Function
High 7.5
In plain English
A high-severity missing authentication in dcm4chee-arc-light from J4Care. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.2%top 85.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| J4Care | dcm4chee-arc-light | 5.35.1 |
Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N