CVE-2026-67611

OpenEMR through 8.2.0 contains an authentication bypass vulnerability that allows attackers with valid credentials to circumvent multi-factor authentication by exploiting the exposed OAuth2 password grant flow through an unauthenticated client registration endpoint. Attackers can register an OAuth2 client via the unauthenticated registration endpoint and use the password grant to exchange credentials for an API access token, bypassing the normal web interface authentication and any enforced multi-factor authentication controls.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://jivasecurity.com/writeups/openemr-preauth-disclosure-password-grant	Exploit Mitigation Third Party Advisory
https://www.vulncheck.com/advisories/openemr-oauth2-password-grant-authentication-bypass-via-smart-configuration	Exploit Third Party Advisory Mitigation

Configurations

Configuration 1 (hide)

cpe:2.3:a:open-emr:openemr:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-08-03 17:16

Updated : 2026-09-01 15:36

NVD link : CVE-2026-67611

Mitre link : CVE-2026-67611

CVE.ORG link : CVE-2026-67611

JSON object : View

Products Affected

open-emr

openemr

CWE

CWE-308

Use of Single-factor Authentication

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