CVE-2026-47672— epa4all-client: Unauthenticated REST API for Patient Record Writes
Quick assessment
Affected
oviva-ag epa4all-client
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.
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。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| oviva-ag | epa4all-client | <= 1.2.4 |
affected |
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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: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
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
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| oviva-ag | epa4all-client | <= 1.2.4 | - |
|
II. Public POCs for CVE-2026-47672
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-47672 (1)
Same Patch Batch · oviva-ag · 2026-05-26 · 4 CVEs total
| CVE-2026-45574 | 8.1 HIGH | epa4all-client: TLS Certificate Validation Disabled in Production |
| CVE-2026-44900 | 8.1 HIGH | epa4all-client: VAU Signature bypass |
| CVE-2026-45575 | 7.4 HIGH | epa4all-client: Improper Verification of Cryptographic Signature |
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V. Comments for CVE-2026-47672
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