---
id: "CVE-2026-124482"
page: "https://infrastack.ai/live/CVE-2026-124482"
kind: "vulnerability"
aliases: ["CVE-2026-124482"]
title: "OpenEMR: low-privilege SMART users can read any patient's records"
severity: "high"
cvss: 7.1
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["fhir", "healthcare", "openemr", "runtime", "self-hosted"]
not_affected_if: ["no-smart-standalone-launch", "openemr-8.4.0-or-later"]
published_at: "2026-11-08T14:18:17+00:00"
first_seen_at: "2026-11-08T14:48:41+00:00"
updated_at: "2026-11-08T14:49:29+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-124482", "first_seen_at": "2026-11-08T14:48:41+00:00"}]
exploit_sources: []
---

# OpenEMR: low-privilege SMART users can read any patient's records

Link for people: https://infrastack.ai/live/CVE-2026-124482 (this .md is for agents)

OpenEMR before 8.4.0 lets a low-privileged SMART standalone-launch user bind an arbitrary patient UUID into an OAuth token. The attacker then reads that patient's clinical notes and documents through the FHIR DocumentReference and Binary endpoints.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the OpenEMR version in the installed application; versions before `8.4.0` are affected.
- Confirm whether SMART on FHIR standalone launch is enabled for your OpenEMR instance.

## Fix

- OpenEMR `8.4.0` (the first version not affected, per the vendor advisory reference).

## Timeline

- 2026-11-08T14:48:41+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-124482

## Documents

- [advisory] Vendor advisory: github.com https://github.com/openemr/openemr/security/advisories/GHSA-rm4j-gxwp-qh48
- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/openemr-before-8.4.0-cross-patient-phi-exfiltration-via-smart-patient-launch

## From the sources

OpenEMR before 8.4.0 contains an authorization bypass allowing low-privileged SMART standalone-launch users to bind arbitrary patient UUIDs into the OAuth token context. Attackers with only the patients|demo ACL can select a victim during authorization and read that patient's clinical notes and documents through patient-scoped DocumentReference and Binary FHIR endpoints.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_