OpenEMR before 8.5.0 contains an insecure direct object reference vulnerability in the CAMOS rx_print.php printer that allows authenticated users to read other patients' prescriptions. Attackers can submit forged chrx_ parameters with global prescription IDs to disclose drug names, dosages, directions, and refill counts without medication permissions.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
openemr openemr unaffected
Version Status Constraints
0 affected < 8.5.0
8.5.0 unaffected —

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Project Subscriptions

Vendors Products
Open-emr Subscribe
Openemr Subscribe
Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/openemr/openemr/security/advisories/GHSA-gf9c-4hh8-gh49 cve-icon
https://www.vulncheck.com/advisories/openemr-before-8.5.0-idor-via-camos-rx-print-php-prescription-disclosure cve-icon
History

Fri, 13 Nov 2026 09:45:00 +0000

Type Values Removed Values Added
Description OpenEMR before 8.5.0 contains an insecure direct object reference vulnerability in the CAMOS rx_print.php printer that allows authenticated users to read other patients' prescriptions. Attackers can submit forged chrx_ parameters with global prescription IDs to disclose drug names, dosages, directions, and refill counts without medication permissions.
Title OpenEMR before 8.5.0 IDOR via CAMOS rx_print.php Prescription Disclosure
First Time appeared Open-emr
Open-emr openemr
Weaknesses CWE-639
CPEs cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:*
Vendors & Products Open-emr
Open-emr openemr
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-13T09:35:19.496Z

Reserved: 2026-11-10T21:38:36.342Z

Link: CVE-2026-126441

cve-icon Vulnrichment

No data.

cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses