Skip to content
OpenAdvisories
Medium · 6.5 CVE-2026-124464 EUVD-2026-119521GHSA-8x5g-229c-9c6h

OpenEMR before 8.4.0 FHIR Patient Compartment Bypass via QuestionnaireResponse

Published Nov 8, 2026 · Updated Nov 10, 2026 · Assigned by VulnCheck

Description

OpenEMR before 8.4.0 contains an authorization bypass vulnerability that allows patient-scoped SMART tokens to read other patients' questionnaire responses because FhirQuestionnaireResponseService does not implement IPatientCompartmentResourceService. Attackers holding a patient/QuestionnaireResponse.rs token can request responses by uuid or list the unfiltered bundle to obtain cross-patient clinical assessment answers.

Affected products

VendorProductAffectedFixed
openemr openemr < 8.4.0 8.4.0

References