CVE-2026-45574
epa4all-client: TLS Certificate Validation Disabled in Production
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-295 |
| Vendor | oviva-ag |
| Product | epa4all-client |
| Published | May 26, 2026 |
| Last Updated | May 27, 2026 |
Stay Ahead of the Next One
Get instant alerts for oviva-ag epa4all-client
Be the first to know when new high vulnerabilities affecting oviva-ag epa4all-client are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
oviva-ag / epa4all-client
< 1.2.2
com.oviva.telematik / epa4all-client
< 1.2.2