CVE-2026-124451
Published:November 08, 2026
Updated:November 09, 2026
OpenEMR before 8.4.0 contains an authorization bypass vulnerability in its SMART on FHIR implementation because checkUserHasAccessToPatient() in BearerTokenAuthorizationStrategy.php unconditionally returns true. Authenticated users or malicious SMART apps can manipulate token launch context to bind requests to arbitrary patient UUIDs, gaining unauthorized read/write access to other patients' FHIR resources.
Affected Packages
https://github.com/openemr/openemr.git (GITHUB):
Affected version(s) >=v7_0_0 <v8_4_0 || >=v8_0_0 <v8_4_0Fix Suggestion:
Update to version v8_4_0Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
6
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Authorization Bypass Through User-Controlled Key