CVE-2026-67611
highpriority · track · 0EPSS 0.008 · 56 %ileEUUSEPSS · scored 2026-10-28
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.2–8.6
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://jivasecurity.com/writeups/openemr-preauth-disclosure-password-grantcnnvd
- https://www.vulncheck.com/advisories/openemr-oauth2-password-grant-authentication-bypass-via-smart-configurationcnnvd
- https://jivasecurity.com/writeups/openemr-preauth-disclosure-password-grantenisa_euvd
- https://www.vulncheck.com/advisories/openemr-oauth2-password-grant-authentication-bypass-via-smart-configurationenisa_euvd
- https://jivasecurity.com/writeups/openemr-preauth-disclosure-password-grantExploitMitigationThird Party Advisorynvd
- https://www.vulncheck.com/advisories/openemr-oauth2-password-grant-authentication-bypass-via-smart-configurationExploitThird Party AdvisoryMitigationnvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan