{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.2.2"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9111d6fbb939007036a7f74b2a93bb278cb5af32"
            }
          ],
          "repo": "https://github.com/oviva-ag/epa4all-client",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-gqx7-6552-67hf"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-347"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45575.json"
  },
  "details": "epa4all-client is the Java Client for epa4all / ePA 3.0 in the Telematik Infrastruktur. Prior to 1.2.2, an attacker who can MITM the TLS connection between the client and the IDP (within the TI network) can substitute a forged discovery document. The forged document redirects uri_puk_idp_enc and uri_puk_idp_sig to attacker-controlled URLs. The client then encrypts the SMC-B-signed challenge response to the attacker's encryption key and POSTs it to the attacker's auth endpoint. This captures the signed authentication material. This vulnerability is fixed in 1.2.2.",
  "id": "CVE-2026-45575",
  "modified": "2026-07-08T05:38:01.886931172Z",
  "published": "2026-05-26T21:01:51.745Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45575.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/oviva-ag/epa4all-client/security/advisories/GHSA-gqx7-6552-67hf"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45575"
    },
    {
      "type": "FIX",
      "url": "https://github.com/oviva-ag/epa4all-client/pull/36"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "epa4all-client: Improper Verification of Cryptographic Signature"
}