---
id: "CVE-2026-124445"
page: "https://infrastack.ai/live/CVE-2026-124445"
kind: "vulnerability"
aliases: ["CVE-2026-124445"]
title: "OpenEMR: one-time login tokens can be replayed and PINs brute-forced"
severity: "critical"
cvss: 9.8
epss: null
exploited: false
status: "open"
category: "runtime"
products: [{"name": "OpenEMR", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["healthcare", "openemr", "patient-portal", "runtime", "self-hosted"]
not_affected_if: ["version-8.4.0-or-later"]
published_at: "2026-11-08T14:18:11+00:00"
first_seen_at: "2026-11-08T14:48:39+00:00"
updated_at: "2026-11-08T14:48:47+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-124445", "first_seen_at": "2026-11-08T14:48:39+00:00"}]
exploit_sources: []
---

# OpenEMR: one-time login tokens can be replayed and PINs brute-forced

Link for people: https://infrastack.ai/live/CVE-2026-124445 (this .md is for agents)

OpenEMR from 7.0.1 before 8.4.0 ignores its one-time-use and access-count flags for service_auth tokens and never revokes consumed tokens. It also checks the login PIN without rate limiting or strict comparison, so an attacker holding a captured token can replay it or guess the PIN to open patient-portal sessions that expose protected health information.

_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 OpenEMR version: `7.0.1` up to but not including `8.4.0` is affected.
- Review `src/Common/Auth/OneTimeAuth.php` in your installed copy for the flag handling described.

## Fix

- OpenEMR: upgrade to `8.4.0` or later.

## Timeline

- 2026-11-08T14:48:39+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-124445

## Documents

- [advisory] Vendor advisory: github.com https://github.com/openemr/openemr/security/advisories/GHSA-xg3m-9pfq-c8r6
- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/openemr-7.0.1-before-8.4.0-onetimeauth-token-replay-and-pin-brute-force

## From the sources

OpenEMR from 7.0.1 before 8.4.0 contains a flaw in src/Common/Auth/OneTimeAuth.php that ignores the enforce_onetime_use and max_access_count flags, never revokes consumed service_auth tokens, and checks login_pin without rate limiting or strict comparison. Attackers holding a captured token can replay it or brute-force the PIN to open patient-portal sessions exposing PHI.

---

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