CVE-2026-67611

HIGH 8.1

OpenEMR 8.2.0 OAuth2 Password Grant Authentication Bypass via SMART Configuration

CVSS Score

8.1

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-308
Vendor	openemr
Product	openemr
Published	Aug 3, 2026

Stay Ahead of the Next One

Get instant alerts for openemr openemr

Be the first to know when new high vulnerabilities affecting openemr openemr are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Affected Versions

openemr / openemr

0 ≤ 8.2.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

jivasecurity.com: https://jivasecurity.com/writeups/openemr-preauth-disclosure-password-grant vulncheck.com: https://www.vulncheck.com/advisories/openemr-oauth2-password-grant-authentication-bypass-via-smart-configuration

Credits

Jiva (JivaSecurity)