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

PACKAGE
Advisory Identifier: GHSA-5hhf-xmfx-4vvr
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Advisory Summary

CVE-2026-45574 is a HIGH (CVSS 8.1) tls certificate validation disabled vulnerability (CWE-295: Improper Certificate Validation) affecting epa4all-client libraries in the Maven ecosystem. The issue involves tls certificate validation disabled in production. Remediation is available by upgrading affected packages to version 1.2.2.

3 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:maven/com.oviva.telematik/epa4all-client

3 Known Advisory Record(s)

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

Advisory ID CVE / NVD Severity Summary
GHSA-5hhf-xmfx-4vvr CVE-2026-45574 HIGH epa4all-client: TLS Certificate Validation Disabled in Production
GHSA-g8r3-5hwf-qp96 CVE-2026-44900 HIGH epa4all-client has a VAU Signature bypass
GHSA-gqx7-6552-67hf CVE-2026-45575 HIGH Improper Verification of Cryptographic Signature in com.oviva.telematik:epa4all-client

CVE-2026-45574 at a Glance

CVE Identifier CVE-2026-45574
GHSA Identifier GHSA-5hhf-xmfx-4vvr
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification CWE-295: Improper Certificate Validation
Affected Product epa4all-client
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.1

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:H/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 High (C:H)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2026-45574

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-client fixed: 1.2.2 
<dependency>
    <groupId>com.oviva.telematik</groupId>
    <artifactId>epa4all-client</artifactId>
    <version>1.2.2</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-2026-45574, 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 1.2.2), 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-295: Improper Certificate Validation, where the product does not validate, or incorrectly validates, a certificate. 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 An attacker on the network path between the ePA service and the Konnektor can present any TLS certificate (self-signed, expired, wrong CN) and intercept all SOAP traffic. This includes patient identifiers (KVNR), SMC-B card operations (authentication, signing), document content, and credential exchanges. ### Patches [#36](https://github.com/oviva-ag/epa4all-client/pull/36) ### Workarounds Use the library directly instead of the REST wrapper. ### Resources - MS-OVIVA-EPA4ALL-771a78 ### 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-2026-45574 Affected epa4all-client Versions

1 component(s)
Fixed Versions:
1.2.2
Product / Package Ecosystem Affected Versions Fixed Version
com.oviva.telematik:epa4all-client
maven/com.oviva.telematik/epa4all-client
Maven
< 1.2.2
1.2.2

References

GitHub Advisory / Wiki ADVISORY
https://github.com/oviva-ag/epa4all-client/security/advisories/GHSA-5hhf-xmfx-4vvr
NVD — CVE-2026-45574 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-45574
epa4all-client Source Repository REPOSITORY
https://github.com/oviva-ag/epa4all-client/pull/36
Security Fix Commit FIX COMMIT
https://github.com/oviva-ag/epa4all-client/commit/9111d6fbb939007036a7f74b2a93bb278cb5af32
epa4all-client Source Repository REPOSITORY
https://github.com/oviva-ag/epa4all-client
epa4all-client Release RELEASE
https://github.com/oviva-ag/epa4all-client/releases/tag/v1.2.2

Frequently Asked Questions

What is CVE-2026-45574?
CVE-2026-45574 is a security vulnerability in epa4all-client involving TLS Certificate Validation Disabled in Production under CWE-295: Improper Certificate Validation.
Which epa4all-client versions are affected?
Affected versions include releases prior to 1.2.2 across affected packages: com.oviva.telematik:epa4all-client.
What version fixes CVE-2026-45574?
Upgrading to 1.2.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is epa4all-client affected?
Yes, com.oviva.telematik:epa4all-client is affected in releases prior to 1.2.2. Upgrade your dependency to 1.2.2 or later.
What is the CVSS score of CVE-2026-45574?
CVE-2026-45574 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
What CWE is associated with CVE-2026-45574?
CVE-2026-45574 is classified under CWE-295: Improper Certificate Validation (The product does not validate, or incorrectly validates, a certificate.).
How can I check Maven dependencies for CVE-2026-45574?
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
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-5hhf-xmfx-4vvr",
  "modified" : "2026-06-08T23:35:18Z",
  "published" : "2026-05-15T18:29:31Z",
  "aliases" : [ "CVE-2026-45574" ],
  "summary" : "epa4all-client: TLS Certificate Validation Disabled in Production",
  "details" : "### Impact\nAn attacker on the network path between the ePA service and the Konnektor can present any TLS certificate (self-signed, expired, wrong CN) and intercept all SOAP traffic. This includes patient identifiers (KVNR), SMC-B card operations (authentication, signing),\ndocument content, and credential exchanges.\n\n### Patches\n[#36](https://github.com/oviva-ag/epa4all-client/pull/36)\n\n### Workarounds\nUse the library directly instead of the REST wrapper.\n\n### Resources\n- MS-OVIVA-EPA4ALL-771a78\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:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.oviva.telematik:epa4all-client"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.2.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/oviva-ag/epa4all-client/security/advisories/GHSA-5hhf-xmfx-4vvr"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-45574"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/oviva-ag/epa4all-client/pull/36"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/oviva-ag/epa4all-client/commit/9111d6fbb939007036a7f74b2a93bb278cb5af32"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/oviva-ag/epa4all-client"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/oviva-ag/epa4all-client/releases/tag/v1.2.2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-295" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-05-15T18:29:31Z",
    "nvd_published_at" : "2026-05-26T22:16:43Z"
  }
}