CVE-2026-126439
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OpenEMR Missing Authorization in CCDA Report Access

Publication date: 2026-11-13

Last updated on: 2026-11-13

Assigner: VulnCheck

Description
OpenEMR before 8.5.0 contains a missing authorization vulnerability in ccdaservice/ccda_gateway.php that fails to enforce the patients/pat_rep permission, accepting any authenticated core session. Authenticated users without patient-report permission can request the report_ccd_view action to retrieve the selected patient's C-CDA clinical summary, including diagnoses, medications, laboratory results, and identifiers.

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Meta Information

Published
2026-11-13
Last Modified
2026-11-13
Generated
2026-11-13
AI Q&A
2026-11-13
EPSS Evaluated
N/A
NVD
CVE-2026-126439
EUVD
EUVD-2026-125004

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
openemr openemr to 8.5.0 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

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Executive Summary

This vulnerability is a missing authorization flaw in OpenEMR versions before 8.5.0. It exists in the file ccdaservice/ccda_gateway.php where the system fails to enforce the patients/pat_rep permission. Authenticated users without this permission can bypass checks and request the report_ccd_view action to retrieve a patient's C-CDA clinical summary, which includes sensitive data like diagnoses, medications, lab results, and identifiers.

Detection Guidance

Check OpenEMR versions before 8.5.0 by running: grep -r '"version"' /var/www/html/openemr/library/version.php or check the OpenEMR admin panel. Monitor logs for unauthorized access to ccdaservice/ccda_gateway.php with report_ccd_view actions.

Impact Analysis

An attacker with authenticated access but without proper permissions could exploit this to steal sensitive patient data such as medical history, medications, lab results, and personal identifiers. This could lead to privacy breaches, identity theft, or unauthorized access to confidential health records.

Compliance Impact

This vulnerability likely violates GDPR and HIPAA due to unauthorized access to protected health information. GDPR requires strict consent and data protection for personal data, while HIPAA mandates safeguards for patient records. Exploiting this flaw could result in non-compliance, legal penalties, and reputational damage for organizations handling patient data.

Mitigation Strategies

Upgrade OpenEMR to version 8.5.0 or later immediately. If upgrading is not possible, restrict access to ccdaservice/ccda_gateway.php by modifying server rules or disabling the C-CDA gateway feature until patched.

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