Auth bypass in Open-Emr Openemr
CVE-2026-25745
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.
Vulnerability class: IDOR (Insecure Direct Object Reference)
EPSS: 0.003 (19.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Open-emr Openemr
- Openemr — versions <= 8.0.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-25745?
- CVE-2026-25745 is a medium-severity vulnerability in Open-Emr Openemr, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-03-18.
- How severe is CVE-2026-25745?
- Medium severity. CVSS v3 base score is 6.5 out of 10.