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CVE-2026-124482— OpenEMR before 8.4.0 Cross-Patient PHI Exfiltration via SMART Patient Launch

Quick assessment

Affected

openemr openemr

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 OpenEMR 8.4.0 之前的版本中存在一个授权绕过漏洞，使得权限较低的 SMART 独立启动（standalone-launch）用户能够将任意患者的 UUID 绑定到 OAuth 令牌上下文中。仅拥有访问控制列表（ACL）的攻击者可在授权过程中选择目标患者，并通过患者范围的 DocumentReference 和 Binary FHIR 端点读取该患者的临床笔记和文档。

CVSS 6.5 · Medium Updated Nov 08, 2026

Possible ATT&CK Techniques 2 AI

T1078 · Valid Accounts T1548 · Abuse Elevation Control Mechanism

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Vulnerability Information

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Vulnerability Title

OpenEMR before 8.4.0 Cross-Patient PHI Exfiltration via SMART Patient Launch

Source: CVE Program / CVE List V5

Vulnerability Description

OpenEMR before 8.4.0 contains an authorization bypass allowing low-privileged SMART standalone-launch users to bind arbitrary patient UUIDs into the OAuth token context. Attackers with only the patients|demo ACL can select a victim during authorization and read that patient's clinical notes and documents through patient-scoped DocumentReference and Binary FHIR endpoints.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

通过用户控制密钥绕过授权机制

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
openemr	openemr	0 ~ 8.4.0	-

II. Public POCs for CVE-2026-124482

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-124482

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Other References for CVE-2026-124482 (2)

https://github.com/openemr/openemr/security/advisories/GHSA-rm4j-gxwp-qh48 vendor-advisory
https://www.vulncheck.com/advisories/openemr-before-8.4.0-cross-patient-phi-exfiltration-via-smart-patient-launch third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-124482

Same Patch Batch · openemr · 2026-11-08 · 44 CVEs total

CVE-2026-124469	9.9 CRITICAL	OpenEMR before 8.3.0 SQL Injection via Fee Sheet warehouse parameter
CVE-2026-124450	9.9 CRITICAL	OpenEMR before 8.3.0 Arbitrary File Read/Write via disposeDocument
CVE-2026-124445	9.8 CRITICAL	OpenEMR 7.0.1 before 8.4.0 OneTimeAuth Token Replay and PIN Brute Force
CVE-2026-124490	9.1 CRITICAL	OpenEMR before 8.3.0 Arbitrary File Read/Write via oe-module-faxsms disposeDocument
CVE-2026-124467	8.8 HIGH	OpenEMR before 8.4.0 Remote Code Execution via ESign LFI and fax upload
CVE-2026-124484	8.8 HIGH	OpenEMR before 8.4.0 Missing Authorization in Portal Onsite-Document APIs
CVE-2026-124480	8.8 HIGH	OpenEMR before 8.4.0 Authorization Bypass via FHIR QuestionnaireResponse APICSRFTOKEN
CVE-2026-124477	8.8 HIGH	OpenEMR before 8.3.0 Missing Authorization via delete_Recall in save.php
CVE-2026-124446	8.8 HIGH	OpenEMR before 8.3.0 Arbitrary File Read and Write via FaxSMS disposeDocument
CVE-2026-124486	8.8 HIGH	OpenEMR before 8.3.0 Missing Authorization in Classic Document Controller
CVE-2026-124463	8.7 HIGH	OpenEMR before 8.3.0 Stored XSS via CAMOS Rx Print View
CVE-2026-124483	8.3 HIGH	OpenEMR before 8.4.0 Improper Authorization via Prescription REST API
CVE-2026-124488	8.1 HIGH	OpenEMR before 8.3.0 Authorization Bypass via load_form.php High-Sensitivity Encounters
CVE-2026-124459	8.1 HIGH	OpenEMR before 8.3.0 Cross-Patient IDOR via Encounter Form Viewers and Save Handlers
CVE-2026-124447	8.1 HIGH	OpenEMR before 8.3.0 IDOR via OnsitePortalActivityController Update Endpoint
CVE-2026-124472	8.1 HIGH	OpenEMR before 8.3.0 Missing Authorization via sl_eob_patient_note.php
CVE-2026-124461	8.1 HIGH	OpenEMR before 8.3.0 IDOR via DICOM library/ajax/upload.php Endpoint
CVE-2026-124471	8.1 HIGH	OpenEMR before 8.3.0 Missing Authorization and IDOR via sl_eob_invoice.php
CVE-2026-124457	7.6 HIGH	OpenEMR before 8.3.0 Path Traversal via sl_eob_process.php eraname
CVE-2026-124448	7.6 HIGH	OpenEMR before 8.3.0 Stored XSS via CCDA/CCD Preview XSLT Attributes

Showing top 20 of 44 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: openemr

Same vendor: openemr

Same weakness: CWE-639