CVE-2026-33918 HIGH

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

Vendor Openemr
Product openemr
Weakness CWE-862 · Missing authorization
Published March 25, 2026
Last update March 26, 2026

CVSS base score

7.6/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 25, 2026 CVE published
March 26, 2026 Record updated