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TI-2026-20075 Aliases CVE-2026-24890

OpenEMR Portal Users Can Forge Provider Signatures

Priority HIGH 70CWE-285Published · 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-285.

Summary

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0, an authorization bypass vulnerability in the patient portal signature endpoint allows authenticated portal users to upload and overwrite provider signatures by setting `type=admin-signature` and specifying any provider user ID. This could potentially lead to signature forgery on medical documents, legal compliance violations, and fraud. The issue occurs when portal users are allowed to modify provider signatures without proper authorization checks. Version 8.0.0 fixes the issue.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00278 20th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed openemr (openemr): 8.0.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
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 8.0.08.0.0Patch availableCNA
  • openemr Vendoropenemr Affected before 8.0.0 Fixed in 8.0.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:*before 8.0.0VulnerableOpen-Emr
  • cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:* Versions before 8.0.0 Vulnerable ·Open-Emr

Remediation

  • Fix · CNA openemr (openemr) Fixed in 8.0.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-24890

References

Exploit 1

Patch 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