---
id: "CVE-2026-124457"
page: "https://infrastack.ai/live/CVE-2026-124457"
kind: "vulnerability"
aliases: ["CVE-2026-124457"]
title: "OpenEMR: path traversal in billing lets users write and read files"
severity: "high"
cvss: 7.6
epss: null
exploited: false
status: "open"
category: "other"
products: [{"name": "OpenEMR", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["openemr", "other", "php", "self-hosted"]
not_affected_if: ["openemr-8.3.0-or-later"]
published_at: "2026-11-08T14:18:13+00:00"
first_seen_at: "2026-11-08T14:48:40+00:00"
updated_at: "2026-11-08T14:49:19+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-124457", "first_seen_at": "2026-11-08T14:48:40+00:00"}]
exploit_sources: []
---

# OpenEMR: path traversal in billing lets users write and read files

Link for people: https://infrastack.ai/live/CVE-2026-124457 (this .md is for agents)

OpenEMR before 8.3.0 has a path traversal flaw in its billing EOB processing script, where unsanitized eraname values let ../ sequences escape the intended directory. An logged-in user can write report files anywhere the web server can write and read arbitrary .edi file contents back out.

_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 (`8.3.0` or later is not affected per the sources); unknown otherwise
- Look for the file `interface/billing/sl_eob_process.php` in the OpenEMR install and confirm whether the eraname handling is present

## Fix

- OpenEMR: move to `8.3.0` or later

## Timeline

- 2026-11-08T14:48:40+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-124457

## Documents

- [advisory] Vendor advisory: github.com https://github.com/openemr/openemr/security/advisories/GHSA-m6q6-5j87-3cmp
- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/openemr-before-8.3.0-path-traversal-via-sl-eob-process-php-eraname

## From the sources

OpenEMR before 8.3.0 contains a path traversal vulnerability in interface/billing/sl_eob_process.php that allows authenticated users to write and read files by supplying unsanitized eraname values. Attackers without billing privileges can inject ../ sequences to create ERA report .html files anywhere the web user can write and parse arbitrary .edi files echoed into the report.

---

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