epa4all-client: TLS Certificate Validation Disabled in Production
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
Workarounds
Use the library directly instead of the REST wrapper.
Resources
- MS-OVIVA-EPA4ALL-771a78
Credits
Machine Spirits (contact@machinespirits.de)
- Dr. rer. nat. Simon Weber
- Dipl.-Inf. Volker Schönefeld
- Chiara Fliegner
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | com.oviva.telematik:epa4all-client | < 1.2.2 | 1.2.2 |
References
- https://github.com/oviva-ag/epa4all-client/security/advisories/GHSA-5hhf-xmfx-4vvr
- https://nvd.nist.gov/vuln/detail/CVE-2026-45574
- https://github.com/oviva-ag/epa4all-client/pull/36
- https://github.com/oviva-ag/epa4all-client/commit/9111d6fbb939007036a7f74b2a93bb278cb5af32
- https://github.com/oviva-ag/epa4all-client
- https://github.com/oviva-ag/epa4all-client/releases/tag/v1.2.2
- CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N- Weakness (CWE)
CWE-295- Platform
- Java / Kotlin (Maven)
- Package
com.oviva.telematik:epa4all-client- Disclosed
- 15.05.2026
- Updated
- 11.10.2026 12:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-5hhf-xmfx-4vvr - CC BY 4.0
Vulnerability history: com.oviva.telematik:epa4all-client
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 3
- First → latest
- 05.2026 05.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 3
Disclosures per year
- 2026: 3
-
epa4all-client: TLS Certificate Validation Disabled in Production this entry
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.