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CVE-2026-47672— epa4all-client: Unauthenticated REST API for Patient Record Writes

CVSS 6.5 · Medium EPSS 0.02% · P4

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProductVersion RangeStatus
oviva-agepa4all-client<= 1.2.4affected
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I. Basic Information for CVE-2026-47672

Vulnerability Information
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Vulnerability Title
epa4all-client: Unauthenticated REST API for Patient Record Writes
Source: NVD (National Vulnerability Database)
Vulnerability Description
epa4all-client is the Java Client for epa4all / ePA 3.0 in the Telematik Infrastruktur. In 1.2.4 and earlier, any network-reachable caller can write arbitrary documents to any patient's electronic health record accessible by the institution's SMC-B card. In a misconfigured deployment (e.g., following the production Docker example in the README), this is exploitable from the local network without credentials.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
关键功能的认证机制缺失
Source: NVD (National Vulnerability Database)
Vulnerability Title
epa4all-client 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
epa4all-client是Oviva AG开源的一个文档写入客户端工具。 epa4all-client 1.2.4及之前版本存在访问控制错误漏洞，该漏洞源于任意网络可达调用者可向患者电子健康记录写入任意文档，可能导致未授权数据写入。
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)

Affected Products

VendorProductAffected VersionsCPESubscribe
oviva-agepa4all-client <= 1.2.4 -

II. Public POCs for CVE-2026-47672

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III. Intelligence Information for CVE-2026-47672

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Vendor Advisories for CVE-2026-47672 (1)

Same Patch Batch · oviva-ag · 2026-05-26 · 4 CVEs total

CVE-2026-455748.1 HIGHepa4all-client: TLS Certificate Validation Disabled in Production
CVE-2026-449008.1 HIGHepa4all-client: VAU Signature bypass
CVE-2026-455757.4 HIGHepa4all-client: Improper Verification of Cryptographic Signature

IV. Related Vulnerabilities

Same product: epa4all-client
Same vendor: oviva-ag
Same weakness: CWE-306

V. Comments for CVE-2026-47672

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