CVE-2026-45574: Com.oviva.telematik EPA4ALL-Client

High severity, CVSS 8.1. EPSS: 0.2% chance of exploitation in the next 30 days.

epa4all-client is the Java Client for epa4all / ePA 3.0 in the Telematik Infrastruktur. Prior to 1.2.2, 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. This vulnerability is fixed in 1.2.2.

Affected products

• Com.oviva.telematik EPA4ALL-Client: before 1.2.2 (fixed in 1.2.2)
• Oviva-AG EPA4ALL-Client: before 1.2.2 (fixed in 1.2.2)

Published 2026-05-26. Last modified 2026-07-24.