---
id: "CVE-2026-124456"
page: "https://infrastack.ai/live/CVE-2026-124456"
kind: "vulnerability"
aliases: ["CVE-2026-124456"]
title: "OpenEMR: prior-authorization module lets patients' records be read and changed"
severity: "high"
cvss: 7.1
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["healthcare", "openemr", "php", "runtime", "self-hosted"]
not_affected_if: ["managed-hosting", "module-not-installed"]
published_at: "2026-11-08T14:18:13+00:00"
first_seen_at: "2026-11-08T14:48:39+00:00"
updated_at: "2026-11-08T14:49:45+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-124456", "first_seen_at": "2026-11-08T14:48:39+00:00"}]
exploit_sources: []
---

# OpenEMR: prior-authorization module lets patients' records be read and changed

Link for people: https://infrastack.ai/live/CVE-2026-124456 (this .md is for agents)

OpenEMR before 8.3.0 has missing authorization checks in its prior-authorizations module, so a logged-in low-privilege user can read all patients' names, medical record numbers, insurance and prior-auth data. The same flaw lets such a user overwrite other patients' prior-authorization records by submitting arbitrary ids.

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

## How to check

- Check the installed OpenEMR version and confirm it is below `8.3.0`.
- Check whether the `oe-module-prior-authorizations` module is installed and enabled.
- Look for access to `public/reports/list_report.php` and `public/index.php` in web server logs from low-privilege accounts.

## Fix

- Upgrade OpenEMR to `8.3.0` or later.

## Timeline

- 2026-11-08T14:48:39+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-124456

## Documents

- [advisory] Vendor advisory: github.com https://github.com/openemr/openemr/security/advisories/GHSA-9cgf-m88m-9cvx
- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/openemr-before-8.3.0-missing-authorization-and-idor-in-prior-authorizations-module

## From the sources

OpenEMR before 8.3.0 contains missing authorization and insecure direct object reference vulnerabilities in the oe-module-prior-authorizations module that allow authenticated low-privilege users to access and modify other patients' records. Attackers can request public/reports/list_report.php to view all patients' names, MRNs, insurance and prior-auth data, or submit arbitrary id values to public/index.php to overwrite other patients' prior-authorization records.

---

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