CVE-2026-67610
OpenEMR through 8.2.0 contains an improper authentication vulnerability in the OAuth2 dynamic client registration endpoint that allows unauthenticated attackers to register a malicious client with system-level FHIR scopes by supplying a self-generated RSA keypair via the jwks field. Once an administrator approves the registered client, attackers can use the client_credentials grant with a self-signed JWT assertion to obtain access tokens granting read access to all FHIR resources across all patients in the system.
Published:Aug 3, 2026
Last Modified:Aug 14, 2026
EPS:Aug 3, 2026
EPSS Score:0.00326
CVSS Score:8.1
Affected Products
Vendor
Product
Action
Vendor
Open-emr
Product
Openemr
Open-emr
Openemr
Vendor
Openemr
Product
Openemr
Openemr
Openemr
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
