CVE-2026-25745 MEDIUM

CVE-2026-25745: OpenEMR's Message Update Ignores Patient id

Vendor Openemr
Product openemr
Weakness CWE-639 · IDOR
Published March 18, 2026
Last update March 20, 2026

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 18, 2026 CVE published
March 20, 2026 Record updated