{"id":"CVE-2026-45574","aliases":["GHSA-5hhf-xmfx-4vvr"],"url":"https://o3.security/vulnerability/CVE-2026-45574","summary":"epa4all-client: TLS Certificate Validation Disabled in Production","details":"### Impact\nAn 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),\ndocument content, and credential exchanges.\n\n### Patches\n[#36](https://github.com/oviva-ag/epa4all-client/pull/36)\n\n### Workarounds\nUse the library directly instead of the REST wrapper.\n\n### Resources\n- MS-OVIVA-EPA4ALL-771a78\n\n### Credits\n[Machine Spirits](https://machinespirits.com/) ([contact@machinespirits.de](mailto:contact@machinespirits.de))\n\n- Dr. rer. nat. Simon Weber\n- Dipl.-Inf. Volker Schönefeld\n- Chiara Fliegner","published":"2026-05-26T21:03:15.152Z","modified":"2026-08-12T16:24:39.651624Z","cvss":{"score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},"epss":{"score":0.00138,"percentile":0.0343,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"com.oviva.telematik:epa4all-client","fixedVersion":"1.2.2"}],"fix":{"url":"https://github.com/oviva-ag/epa4all-client/pull/36","label":"oviva-ag/epa4all-client#36"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45574.json"},{"type":"ADVISORY","url":"https://github.com/oviva-ag/epa4all-client/security/advisories/GHSA-5hhf-xmfx-4vvr"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45574"},{"type":"FIX","url":"https://github.com/oviva-ag/epa4all-client/pull/36"},{"type":"WEB","url":"https://github.com/oviva-ag/epa4all-client/commit/9111d6fbb939007036a7f74b2a93bb278cb5af32"},{"type":"PACKAGE","url":"https://github.com/oviva-ag/epa4all-client"},{"type":"WEB","url":"https://github.com/oviva-ag/epa4all-client/releases/tag/v1.2.2"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T16:24:39.651624Z"}}