High 8.1Published May 26, 2026

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

Updated under an hour ago (Oct 27, 2026, 5:23 AM ET)

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It affects oviva-ag epa4all-client and 1 other product. Add what you run to find out whether that includes you.

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Every CVE for oviva-ag epa4all-client

Exploited in the last 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.

CVSS: 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness (CWE): CWE-295
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: May 27, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

oviva-ag epa4all-client oviva:epa4all_client (from the name)	before 1.2.2	CNA record
com.oviva.telematik epa4all-client com.oviva.telematik:epa4all_client (from the name)	before 1.2.2	CNA record

References

References

https://github.com/oviva-ag/epa4all-client/security/advisories/GHSA-5hhf-xmfx-4vvr	x-refsource-confirm
https://github.com/oviva-ag/epa4all-client/pull/36	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.