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TI-2026-26380 Aliases CVE-2026-34055

OpenEMR has IDOR in Patient Notes Web UI allows unauthorized note access/modification

Priority LOW 37CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00277 20th percentileScored 2026-11-07
Fix Fixed openemr (openemr): 8.0.0.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
openemropenemrbefore 8.0.0.38.0.0.3Patch availableCNA
  • openemr Vendoropenemr Affected before 8.0.0.3 Fixed in 8.0.0.3 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:*before 8.0.0.3VulnerableOpen-Emr
  • cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:* Versions before 8.0.0.3 Vulnerable ·Open-Emr

Remediation

  • Fix · CNA openemr (openemr) Fixed in 8.0.0.3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-34055

References

Patch 1

Advisory 1

Other 1

  • TI-2026-24664 SQL Injection Vulnerability in ajax graphs library (OpenEMR) CVSS 3.1HIGH 8.8
  • TI-2026-85645 Missing write ACL lets users reassign documents in OpenEMR CVSS 3.1CRITICAL 9.6
  • TI-2026-28796 OpenEMR 8.2.0 Remote Code Execution via CategoryTree eval() Injection CVSS 4.0CRITICAL 9.4
  • TI-2026-20308 OpenEMR's payments gateway_api_key secret rendered into client JS code CVSS 3.1CRITICAL 9.6
  • TI-2026-20093 OpenEMR has SQL Injection in Patient API Sort Parameter CVSS 3.1CRITICAL 10.0
  • TI-2026-20048 OpenEMR Arbitrary File Read Vulnerability CVSS 3.1CRITICAL 10.0
See all 153 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences