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CVE-2026-24898— OpenEMR has an Unauthenticated MedEx Token Disclosure

Quick assessment

Affected
openemr openemr
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenEMR是OpenEMR社区的一套开源的医疗管理系统。该系统可用于医疗实践管理、电子医疗记录、处方书写和医疗帐单申请。 OpenEMR 8.0.0之前版本存在授权问题漏洞，该漏洞源于MedEx回调端点存在未经验证的令牌泄露，可能导致第三方服务完全被破解、PHI泄露、在MedEx平台上的未经授权操作以及违反HIPAA。

CVSS 10.0 · Critical EPSS 0.56% · P45
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I. Basic Information for CVE-2026-24898

Vulnerability Information
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Vulnerability Title
OpenEMR has an Unauthenticated MedEx Token Disclosure
Source: CVE Program / CVE List V5
Vulnerability Description
OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.0.0, an unauthenticated token disclosure vulnerability in the MedEx callback endpoint allows any unauthenticated visitor to obtain the practice's MedEx API tokens, leading to complete third-party service compromise, PHI exfiltration, unauthorized actions on the MedEx platform, and HIPAA violations. The vulnerability exists because the endpoint bypasses authentication ($ignoreAuth = true) and performs a MedEx login whenever $_POST['callback_key'] is provided, returning the full JSON response including sensitive API tokens. This vulnerability is fixed in 8.0.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
OpenEMR 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenEMR是OpenEMR社区的一套开源的医疗管理系统。该系统可用于医疗实践管理、电子医疗记录、处方书写和医疗帐单申请。 OpenEMR 8.0.0之前版本存在授权问题漏洞，该漏洞源于MedEx回调端点存在未经验证的令牌泄露，可能导致第三方服务完全被破解、PHI泄露、在MedEx平台上的未经授权操作以及违反HIPAA。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
openemr openemr < 8.0.0 -

II. Public POCs for CVE-2026-24898

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Qwen3.6-35B-A3B · 7877 chars
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III. Intelligence Information for CVE-2026-24898

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Patches & Fixes for CVE-2026-24898 (1)

Vendor Advisories for CVE-2026-24898 (1)

Same Patch Batch · openemr · 2026-03-03 · 3 CVEs total

CVE-2026-25146 9.6 CRITICAL OpenEMR's payments gateway_api_key secret rendered into client JS code
CVE-2026-24848 OpenEMR Arbitrary File Write leading to Remote Code Execution

IV. Related Vulnerabilities

Same product: openemr
Same vendor: openemr
Same weakness: CWE-287

V. Comments for CVE-2026-24898

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