CVE-2026-45574
epa4all-client: TLS Certificate Validation Disabled in Production
- State
- Published
- Severity
- 8.1 High
- Published
- May 26, 2026
- Updated
- May 27, 2026
- Reserved
- May 12, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.1 High | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N | GitHub_M |
Weaknesses
- CWE-295 Improper Certificate Validation
Affected Products
| Product | Versions |
|---|---|
epa4all-clientoviva-ag |
|
epa4all-clientcom.oviva.telematik |
|
References
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