CVE-2026-45574

epa4all-client: TLS Certificate Validation Disabled in Production

Published May 26, 2026 CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-5hhf-xmfx-4vvr epa4all-client: TLS Certificate Validation Disabled in Production
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Com.oviva.telematik
Com.oviva.telematik epa4all-client
Oviva-ag
Oviva-ag epa4all-client
Vendors & Products Com.oviva.telematik
Com.oviva.telematik epa4all-client
Oviva-ag
Oviva-ag epa4all-client
Type Values Removed Values Added
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.
Title epa4all-client: TLS Certificate Validation Disabled in Production
Weaknesses CWE-295
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
May 27, 2026, 1:21 PM
Reserved
May 12, 2026, 7:00 PM
Status
Deferred
Published
May 26, 2026, 10:16 PM
Modified
Jul 24, 2026, 12:10 PM