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TI-2026-85639 Aliases CVE-2026-104139

Missing authorization in OpenEMR lets users download other patients' records

Priority LOW 29CWE-862Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

OpenEMR before 8.3.0 lets any authenticated user set an arbitrary patient identifier in the active session because library/ajax/set_pt.php performs no access control check. The download_template.php endpoint trusts that session value and enforces only CSRF validation, which is a missing authorization flaw (CWE-862). A low-privilege user without patients/docs access can download a rendered document template containing another patient's demographics, encounter information, allergies, medications, and problem list.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Description from the CNA

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.3.0, library/ajax/set_pt.php allows any authenticated user to set an arbitrary patient identifier in the active session without an ACL check, and interface/patient_file/download_template.php trusts that session value while enforcing only CSRF validation. A low-privilege user can select another patient and download a rendered document template containing the patient's demographics, encounter information, allergies, medications, and problem list despite lacking patients/docs access. This issue is fixed in version 8.3.0.

Why it matters now

EPSS 0.00304 23rd percentileScored 2026-11-07
Fix Fixed openemr (openemr): 8.3.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
openemropenemrbefore 8.3.08.3.0Patch availableCNA
  • openemr Vendoropenemr Affected before 8.3.0 Fixed in 8.3.0 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:*——Open-Emr
  • cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:* Versions — — ·Open-Emr

Remediation

Upgrade OpenEMR to version 8.3.0, which fixes this issue.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

  • Fix · CNA openemr (openemr) Fixed in 8.3.0

Timeline

  1. 2026-11-05 Threatist record created from CVE-2026-104139
  2. 2026-11-07 Priority changed: MEDIUM → LOW

References

Other 4

  • 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