Vulnerabilities in pkg:maven/com.oviva.telematik/epa4all-rest-service

PACKAGE
Advisory Identifier: GHSA-c82x-f4xr-qv33
Advisory Summary

CVE-2026-47672 is a MODERATE (CVSS 6.5) unauthenticated rest api for patient vulnerability (CWE-306: Missing Authentication for Critical Function) affecting epa4all-client libraries in the Maven ecosystem. The issue involves unauthenticated rest api for patient record writes. Remediation is available in the latest vendor maintenance releases.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:maven/com.oviva.telematik/epa4all-rest-service

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:maven/com.oviva.telematik/epa4all-rest-service. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-c82x-f4xr-qv33 CVE-2026-47672 MODERATE epa4all-client: Unauthenticated REST API for Patient Record Writes

CVE-2026-47672 at a Glance

CVE Identifier CVE-2026-47672
GHSA Identifier GHSA-c82x-f4xr-qv33
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-306: Missing Authentication for Critical Function
Affected Product epa4all-client
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N).

Attack Vector Adjacent (AV:A)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2026-47672

To remediate this vulnerability, upgrade all affected epa4all-client dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

com.oviva.telematik:epa4all-rest-service fixed: Latest secure release
<dependency>
    <groupId>com.oviva.telematik</groupId>
    <artifactId>epa4all-rest-service</artifactId>
    <version>Latest secure release</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

mvn dependency:tree -Dincludes=com.oviva.telematik

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-47672, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=com.oviva.telematik

Analyze the terminal output to locate any version of epa4all-client in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree -Dincludes=com.oviva.telematik command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-306: Missing Authentication for Critical Function, where the product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. In epa4all-client, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact 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. ### Patches - [#43](https://github.com/oviva-ag/epa4all-client/pull/43) ### Workarounds Use network policies or proxies to enforce service-to-service authentication via e.g. mTLS. - run the service in an isolated network namespace e.g. as Kubernetes sidecar - service-mesh with corresponding policies ### References - MS-OVIVA-EPA4ALL-8b2af7 ### Credits [Machine Spirits](https://machinespirits.com/) ([contact@machinespirits.de](mailto:contact@machinespirits.de)) - Dr. rer. nat. Simon Weber - Dipl.-Inf. Volker Schönefeld - Chiara Fliegner

CVE-2026-47672 Affected epa4all-client Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
com.oviva.telematik:epa4all-rest-service
Maven
≤ 1.2.4

References

Frequently Asked Questions

What is CVE-2026-47672?
CVE-2026-47672 is a security vulnerability in epa4all-client involving Unauthenticated REST API for Patient Record Writes under CWE-306: Missing Authentication for Critical Function.
Which epa4all-client versions are affected?
Affected versions include releases prior to current release patches across affected packages: com.oviva.telematik:epa4all-rest-service.
What version fixes CVE-2026-47672?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is epa4all-rest-service affected?
Yes, com.oviva.telematik:epa4all-rest-service is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2026-47672?
CVE-2026-47672 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
What CWE is associated with CVE-2026-47672?
CVE-2026-47672 is classified under CWE-306: Missing Authentication for Critical Function (The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.).
How can I check Maven dependencies for CVE-2026-47672?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=com.oviva.telematik'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-c82x-f4xr-qv33",
  "modified" : "2026-06-04T17:49:29Z",
  "published" : "2026-06-04T17:49:29Z",
  "aliases" : [ "CVE-2026-47672" ],
  "summary" : "epa4all-client: Unauthenticated REST API for Patient Record Writes",
  "details" : "### Impact\nAny network-reachable caller can write arbitrary documents to any patient's electronic\nhealth record accessible by the institution's SMC-B card. In a misconfigured deployment\n(e.g., following the production Docker example in the README), this is exploitable from\nthe local network without credentials.\n\n### Patches\n- [#43](https://github.com/oviva-ag/epa4all-client/pull/43)\n\n### Workarounds\nUse network policies or proxies to enforce service-to-service authentication via e.g. mTLS.\n- run the service in an isolated network namespace e.g. as Kubernetes sidecar\n- service-mesh with corresponding policies\n\n### References\n- MS-OVIVA-EPA4ALL-8b2af7\n\n\n### Credits\n[Machine Spirits](https://machinespirits.com/) ([contact@machinespirits.de](mailto:contact@machinespirits.de))\n\n- Dr. rer. nat. Simon Weber\n- Dipl.-Inf. Volker Schönefeld\n- Chiara Fliegner",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.oviva.telematik:epa4all-rest-service"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.2.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/oviva-ag/epa4all-client/security/advisories/GHSA-c82x-f4xr-qv33"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-47672"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/oviva-ag/epa4all-client/pull/43"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/oviva-ag/epa4all-client"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-306" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-06-04T17:49:29Z",
    "nvd_published_at" : "2026-05-26T21:16:41Z"
  }
}