Summaryinfo

A vulnerability categorized as critical has been discovered in OpenEMR. This issue affects some unknown processing of the file library/pnotes.inc.php. Such manipulation leads to authorization. This vulnerability is uniquely identified as CVE-2026-34055. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in OpenEMR. Affected by this issue is an unknown functionality of the file library/pnotes.inc.php. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. Impacted is confidentiality, integrity, and availability. CVE summarizes:

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0.3, the legacy patient notes functions in `library/pnotes.inc.php` perform updates and deletes using `WHERE id = ?` without verifying that the note belongs to a patient the user is authorized to access. Multiple web UI callers pass user-controlled note IDs directly to these functions. This is the same class of vulnerability as CVE-2026-25745 (REST API IDOR), but affects the web UI code paths. Version 8.0.0.3 patches the issue.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-34055 since 03/25/2026. The exploitation is known to be easy. The attack may be launched remotely. Technical details are known, but there is no available exploit.

By approaching the search of inurl:library/pnotes.inc.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 8.0.0.3 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 214c9b4585a6f1c8c22750172d47f0e258fec0bf is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Business Process Management Software

Name

• OpenEMR

Version

• 2.8.1
• 2.8.2
• 3.1.0
• 3.2
• 3.2.0
• 4.0.0
• 4.1.0
• 4.1.1
• 5.0.0
• 5.0.0 Patch 1
• 5.0.1
• 5.0.1-6
• 5.0.1-dev
• 5.0.1.1
• 5.0.1.3
• 5.0.1.4
• 5.0.2
• 5.0.2.1
• 5.0.2.4
• 5.0.2.5
• 6.0.0
• 6.0.0-dev
• 6.0.0.0
• 6.0.0.2
• 6.0.0.4
• 6.1.0
• 6.1.0.1
• 7.0.0
• 7.0.0.1
• 7.0.0.2
• 7.0.1
• 7.0.2
• 7.0.2.1
• 7.0.3
• 7.0.3.1
• 7.0.3.4
• 7.0.4
• 7.3.0
• 8.0.0
• 8.0.0.1
• 8.0.0.2

License

• open-source

Website

• Product: https://github.com/openemr/openemr/

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