CVE-2026-33918 OpenEMR Missing Authorization on Claim File Download Endpoint

High 7.6 Published 25 Mar 2026 Updated 26 Mar 2026

Authenticated users without billing privileges can download and delete claim files containing protected health information due to missing ACL checks.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-33918?

CVE-2026-33918 is a high-severity missing authorization vulnerability in Open-Emr Openemr, published on 25 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0.3, the billing file-download endpoint `interface/billing/get_claim_file.php` only verifies that the caller has a valid session and CSRF token, but does not check any ACL permissions. This allows any authenticated OpenEMR user — regardless of whether they have billing privileges — to download and permanently delete electronic claim batch files containing protected health information (PHI). Version 8.0.0.3 patches the issue.

Weakness: CWE-862

Which versions are affected by CVE-2026-33918?

It affects 1 product.

Products include Open-Emr Openemr.

How do I fix CVE-2026-33918?

No fix has been published for CVE-2026-33918 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-33918 being exploited?

There is no known exploitation of CVE-2026-33918 in the wild and no public exploit code.

All Open-Emr Openemr vulnerabilities

Sources

Also known as GHSA-g3p5-5grq-m65m.