CVE-2026-25745: OpenEMR's Message Update Ignores Patient id
OpenEMR is a free and open source electronic health records and medical practice management application. In versions up to and including 8.0.0, the message/note update endpoint (e.g. PUT or POST) updates by message/note ID only and does not verify that the message belongs to the current patient (or that the user is allowed to edit that patient’s notes). An authenticated user with notes permission can modify any patient’s messages by supplying another message ID. Commit 92a2ff9eaaa80674b3a934a6556e35e7aded5a41 contains a fix for the issue.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2026-25745?
CVE-2026-25745 has a medium severity level as it compromises patient record integrity by allowing unauthorized message updates.
How do I fix CVE-2026-25745?
To fix CVE-2026-25745, upgrade to OpenEMR version 8.0.1 or later where this vulnerability has been addressed.
What causes CVE-2026-25745?
CVE-2026-25745 is caused by the message/note update endpoint in OpenEMR not verifying the patient ID during updates.
Which versions of OpenEMR are affected by CVE-2026-25745?
CVE-2026-25745 affects OpenEMR versions up to and including 8.0.0.
What are the potential impacts of CVE-2026-25745?
The potential impacts of CVE-2026-25745 include unauthorized modifications of patient messages or notes, risking the accuracy of medical records.