CVE-2026-124464

MEDIUM 6.5

OpenEMR before 8.4.0 FHIR Patient Compartment Bypass via QuestionnaireResponse

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-639
Vendor	openemr
Product	openemr
Published	Nov 8, 2026

Stay Ahead of the Next One

Get instant alerts for openemr openemr

Be the first to know when new medium vulnerabilities affecting openemr openemr are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

openemr / openemr

0 < 8.4.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/openemr/openemr/security/advisories/GHSA-fmmr-p679-97fq vulncheck.com: https://www.vulncheck.com/advisories/openemr-before-8.4.0-fhir-patient-compartment-bypass-via-questionnaireresponse

Credits

CyberKareem AquibAquil Tike00