CVE-2026-45574 HIGH

CVE-2026-45574: epa4all-client: TLS Certificate Validation Disabled in Production

Vendor Oviva-Ag
Product epa4all-client
Weakness CWE-295
Published May 26, 2026
Last update May 27, 2026
View on NVD All CVEs

CVSS base score

8.1/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 26, 2026 CVE published
May 27, 2026 Record updated