Auth bypass in Open-Emr Openemr
CVE-2026-34055
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.
Vulnerability class: IDOR (Insecure Direct Object Reference)
EPSS: 0.003 (18.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Open-emr Openemr
- Openemr — versions < 8.0.0.3
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-34055?
- CVE-2026-34055 is a high-severity vulnerability in Open-Emr Openemr, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.1/10. Published 2026-03-26.
- How severe is CVE-2026-34055?
- High severity. CVSS v3 base score is 8.1 out of 10.