---
id: "CVE-2026-126467"
page: "https://infrastack.ai/live/CVE-2026-126467"
kind: "vulnerability"
aliases: ["CVE-2026-126467"]
title: "OpenEMR: mass assignment lets low-privilege users forge provider-signed observations"
severity: "high"
cvss: 7.1
epss: null
exploited: false
status: "open"
category: "runtime"
products: [{"name": "openemr", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["healthcare", "openemr", "php", "runtime", "self-hosted"]
not_affected_if: ["no-authenticated-low-privilege-users", "openemr-8.5.0-or-later"]
published_at: "2026-11-13T10:17:55+00:00"
first_seen_at: "2026-11-13T10:47:24+00:00"
updated_at: "2026-11-13T10:53:00+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-126467", "first_seen_at": "2026-11-13T10:47:24+00:00"}]
exploit_sources: []
---

# OpenEMR: mass assignment lets low-privilege users forge provider-signed observations

Link for people: https://infrastack.ai/live/CVE-2026-126467 (this .md is for agents)

OpenEMR before 8.5.0 has a mass assignment flaw in its observation save handler, where an incomplete field blacklist lets a logged-in low-privilege user set the authorized flag and overwrite the id. An attacker can mark observations as signed by a provider and alter clinical fields of other observations in the same patient encounter.

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

## Affected

- vendor:openemr affected range not listed fixed no fixed version listed

## How to check

- Check the installed OpenEMR version (`8.5.0` or later is not affected per the NVD description; anything earlier is).
- Look for ObservationController::processEnhancedFormSave() in the OpenEMR source and confirm whether the field blacklist covers authorized and id.

## Fix

- OpenEMR: upgrade to `8.5.0` or later.

## Timeline

- 2026-11-13T10:47:24+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-126467

## Documents

- [advisory] Vendor advisory: github.com https://github.com/openemr/openemr/security/advisories/GHSA-qv6p-57wj-w55p
- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/openemr-before-8.5.0-mass-assignment-via-observation-form-save-php

## From the sources

OpenEMR before 8.5.0 contains a mass assignment vulnerability in ObservationController::processEnhancedFormSave() that allows authenticated low-privilege users to forge authorization flags through an incomplete field blacklist. Attackers can submit authorized=1 or override the id field alongside observation_id to mark observations as Provider-signed and overwrite clinical fields of other observations within the same patient encounter.

---

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