CVE-2026-67610 — OpenEMR 8.2.0 OAuth2 Dynamic Client Registration Unauthorized FHIR Access
OpenEMR through 8.2.0 contains an improper authentication vulnerability in the OAuth2 dynamic client registration endpoint that allows unauthenticated attackers to register a ma…
Published: 2026-08-03 · CVSS: 8.6 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7