---
id: "CVE-2026-115573"
kind: "vulnerability"
aliases: ["CVE-2026-115573"]
title: "OpenEMR: missing access checks let low-privilege users reach patient data"
severity: "high"
cvss: 8.1
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["healthcare", "openemr", "php", "runtime", "self-hosted"]
not_affected_if: ["managed-hosting", "version-8.3.0-or-later"]
published_at: "2026-11-05T20:17:42+00:00"
first_seen_at: "2026-11-05T20:40:44+00:00"
updated_at: "2026-11-05T20:42:57+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-115573", "first_seen_at": "2026-11-05T20:40:44+00:00"}]
exploit_sources: []
---

# OpenEMR: missing access checks let low-privilege users reach patient data

OpenEMR, an electronic health records application, has a controller dispatch path that skips permission checks for some controllers. A logged-in low-privilege user can read patient names, dates of birth and identifiers, and change insurance-routing hosts and credentials.

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

## How to check

- Check the installed OpenEMR version against the fixed version below.
- Look for `library/classes/Controller.class.php` and confirm whether `checkControllerAcl()` exists in the installed code.

## Fix

- OpenEMR: upgrade to `8.3.0` or later.

## Timeline

- 2026-11-05T20:40:44+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-115573

## Documents

- [advisory] Vendor advisory: github.com https://github.com/openemr/openemr/security/advisories/GHSA-9rj4-fxmj-c4r7
- [fix] Patch: github.com https://github.com/openemr/openemr/commit/64f8491d850b2e22ed4fceb14fa67e27fef62cd1
- [fix] Release notes: github.com https://github.com/openemr/openemr/releases/tag/v8_3_0

## From the sources

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.3.0, library/classes/Controller.class.php allows explicit controller.php dispatch to controllers missing from CONTROLLER_ACL_MAP, and checkControllerAcl() returns without enforcing any permission for those entries. A low-privilege authenticated user can invoke C_X12Partner::edit_action_process() to create or alter insurance-routing hosts and credentials, or invoke C_PatientFinder::find_action_process() to enumerate patient names, dates of birth, and identifiers. The shared fail-open dispatcher root cause also exposes other administrative controllers that were intended to be reached through ACL-gated Practice Settings routes. This issue is fixed in version 8.3.0.

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