CVE-2026-124466

HighCVSS 7.2/10Last modified Nov 10, 2026

Description

OpenEMR before 8.4.0 contains a server-side request forgery vulnerability that allows unauthenticated attackers to make the server send HTTP requests by registering an OAuth2 client with an unvalidated jwks_uri. Attackers can trigger the fetch via the token introspection endpoint with an unsigned client_assertion to probe internal services and reach cloud metadata endpoints.

Metrics

CVSS 3.1 7.2/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-918

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published: Nov 8, 2026
Last modified: Nov 10, 2026
NVD status: Awaiting Analysis

Related CVEs from 2026

CVE-2026-1244678.8OpenEMR before 8.4.0 contains a local file inclusion in the ESign router (library/ESign/Router.php), which passes the unsanitized module par CVE-2026-1244687.1OpenEMR before 8.3.0 contains an SQL injection vulnerability in the Standard REST API patient insurance and employer search, which concatena CVE-2026-1244699.9OpenEMR before 8.3.0 contains an SQL injection vulnerability in the Fee Sheet drug-inventory lookup (DrugSalesService::sellDrug) that interp CVE-2026-124478.8Heap buffer overflow in WebRTC in Google Chrome prior to 149.0.7827.155 allowed a remote attacker to execute arbitrary code inside a sandbox CVE-2026-1244706.5OpenEMR before 8.3.0 contains a broken object level authorization vulnerability in portal/report/portal_custom_report.php that allows authen CVE-2026-1244718.1OpenEMR before 8.3.0 contains a missing authorization vulnerability in interface/billing/sl_eob_invoice.php that allows any authenticated us CVE-2026-1244728.1OpenEMR before 8.3.0 contains a missing authorization vulnerability in interface/billing/sl_eob_patient_note.php that allows any authenticat CVE-2026-1244737.1OpenEMR before 8.3.0 contains a broken object-level authorization vulnerability in the SOAP note update API, which does not verify that the CVE-2026-1244746.1MRBS (Meeting Room Booking System) before 1.12.3 contains a reflected cross-site scripting vulnerability that allows unauthenticated attacke CVE-2026-1244757.1OpenEMR before 8.3.0 contains an insecure direct object reference vulnerability in portal/lib/persist.php that allows authenticated portal p CVE-2026-1244766.5OpenEMR before 8.3.0 contains an insecure direct object reference in portal/lib/paylib.php, which writes the request-supplied form_pid (or t CVE-2026-1244778.8OpenEMR before 8.3.0 contains a missing authorization vulnerability that allows low-privileged authenticated users to delete arbitrary patie