HomeCVE Intelligence › CVE-2026-45574
CVSS 8.1 HIGH Vulnerability

CVE-2026-45574: 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),…

8.1CVSS Score
HIGHSeverity
NOCISA KEV
VulnerabilityImpact Type

📋 Vulnerability Details

CVE IDCVE-2026-45574
Vendormaven
Affected Productcom.oviva.telematik:epa4all-client
Vulnerability TypeVulnerability
CVSS Score8.1 (HIGH)
Actively Exploited❌ No known exploitation
Patch StatusSee Vendor Advisory →
Reported ByCYBERDUDEBIVASH SENTINEL APEX Intelligence (via github_advisories)

🔬 Technical Analysis

#

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

• Dipl.-Inf. Volker Schönefeld
• Chiara Fliegner

[Machine Spirits](https://machinespirits.com/) ([contact@machinespirits.de](mailto:contact@machinespirits.de)) - Dr. rer. nat. Simon Weber

🎯 Known Indicators of Compromise

{"type":"url","value":"https://github.com/oviva-ag/epa4all-client/pull/36)","confidence_score":0.82,"first_seen":"2026-05-15","source_count":1} {"type":"url","value":"https://machinespirits.com/)","confidence_score":0.82,"first_seen":"2026-05-15","source_count":1} {"type":"domain","value":"machinespirits.com","confidence_score":0.75,"first_seen":"2026-05-15","source_count":1}

📚 Advisory References

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