# CVE-2026-124489: OpenEMR before 8.3.0 Broken Access Control via portal_payment.php


- **Severity:** High 7.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Fix available:** No
- **Published:** 8 Nov 2026
- **Updated:** 12 Nov 2026
- **Also known as:** GHSA-59mr-wpc5-mhfg, GHSA-j2cx-3p5q-ppx5

## What is CVE-2026-124489?

CVE-2026-124489 is a high-severity vulnerability in openemr, published on 8 Nov 2026. 

### Official description

OpenEMR before 8.3.0 contains a broken access control vulnerability in portal/portal_payment.php that allows low-privilege authenticated users to bypass billing ACL checks by tampering patient identifiers. Attackers can modify the pid and form_pid parameters to view payment pages and record fraudulent payment receipts for arbitrary patients, corrupting billing records.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key)

## Which versions are affected by CVE-2026-124489?


## How do I fix CVE-2026-124489?

No fix has been published for CVE-2026-124489 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-124489 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-124489 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-124489 and fix it if it is affected.

What it is: CVE-2026-124489 is a high-severity vulnerability in openemr, published on 8 Nov 2026. 
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-124489 exists.

Affected product: openemr. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-124489/ (Markdown: https://insights.sbomify.com/CVE-2026-124489/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-124489
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-124489
- OSV: https://osv.dev/vulnerability/CVE-2026-124489

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-124489/
Summaries are generated and may contain mistakes; the official description above is the record.