🛡️ CVE-2026-45574 — epa4all-client
Description
epa4all-client: TLS Certificate Validation Disabled in Production
Impact
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.
Patches
[#36](https://github.com/oviva-ag/epa4all-client/pull/36)
Workarounds
Use the library directly instead of the REST wrapper.
Resources
- MS-OVIVA-EPA4ALL-771a78
Credits
[Machine Spirits](https://machinespirits.com/) ([[email protected]](mailto:[email protected]))
- Dr. rer. nat. Simon Weber
- Dipl.-Inf. Volker Schönefeld
- Chiara Fliegner
How this vulnerability can be exploited
This issue can be reached from an adjacent network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability none.
Weakness class
CVE-2026-45574 is classified as CWE-295: Improper Certificate Validation. A TLS certificate is accepted without proper verification, so a man-in-the-middle can present their own.
Affected software
CVE-2026-45574 is recorded against 2 packages.
- com.oviva.telematik:epa4all-client (fixed in 1.2.2)
- unknown
Timeline and source
Published on 15 May 2026 and last revised on 8 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.
References
github.com (Web)
nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Package)
github.com (Web)
Details
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| com.oviva.telematik:epa4all-client | — | 1.2.2 |
| unknown | — | — |
References
Similar Threats
- High CVE-2026-45575
- High CVE-2026-44900
More CVE 2026 advisories
Browse all of CVE 2026 in the advisory index.
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