HIGH

CVE-2026-67610

2026-08-03 CVSS v3.1

CVSS

8.1

Description

OpenEMR through 8.2.0 contains an improper authentication vulnerability in the OAuth2 dynamic client registration endpoint that allows unauthenticated attackers to register a malicious client with system-level FHIR scopes by supplying a self-generated RSA keypair via the jwks field. Once an administrator approves the registered client, attackers can use the client_credentials grant with a self-signed JWT assertion to obtain access tokens granting read access to all FHIR resources across all patients in the system.

Weakness (CWE)

CWE-306 Missing Authentication

EPSS Score

0.33%

Probability of exploitation in next 30 days

25.9th percentile

References

https://jivasecurity.com/writeups/openemr-unauth-oauth2-client-registration https://www.vulncheck.com/advisories/openemr-oauth2-dynamic-client-registration-unauthorized-fhir-access

View on dbcve.org

Base CVE data derived from NVD (public domain). Enrichment by dbcve.org (CC-BY-4.0). Fetched via API.

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