OpenEMR up to 7.x Contact Information information disclosure

Summaryinfo

A vulnerability marked as problematic has been reported in OpenEMR up to 7.x. Impacted is an unknown function of the component Contact Information Handler. Performing a manipulation results in information disclosure. This vulnerability is known as CVE-2026-25135. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in OpenEMR up to 7.x. This affects an unknown code of the component Contact Information Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

OpenEMR is a free and open source electronic health records and medical practice management application. Versions prior to 8.0.0 have an information disclosure vulnerability that leaks the entire contact information for all users, organizations, and patients in the system to anyone who has the system/(Group,Patient,*).$export operation and system/Location.read capabilities. This vulnerability will impact OpenEMR versions since 2023. This disclosure will only occur in extremely high trust environments as it requires using a confidential client with secure key exchange that requires an administrator to enable and grant permission before the app can even be used. This will typically only occur in server-server communication across trusted clients that already have established legal agreements. Version 8.0.0 contains a patch. As a workaround, disable clients that have the vulnerable scopes and only allow clients that do not have the system/Location.read scope until a fix has been deployed.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-25135 since 01/29/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The exploitation requires an enhanced level of successful authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Upgrading to version 8.0.0 eliminates this vulnerability. Applying the patch 7ab23dfe73ebd16dd66a526272f3761f1bd5be7d 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.

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Productinfo

Type

• Business Process Management Software

Name

• OpenEMR

Version

• 7.x

License

• open-source

Website

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

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