{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45575", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-12T19:00:14.600Z", "datePublished": "2026-05-26T21:01:51.745Z", "dateUpdated": "2026-05-26T21:01:51.745Z"}, "containers": {"cna": {"title": "epa4all-client: Improper Verification of Cryptographic Signature", "problemTypes": [{"descriptions": [{"cweId": "CWE-347", "lang": "en", "description": "CWE-347: Improper Verification of Cryptographic Signature", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/oviva-ag/epa4all-client/security/advisories/GHSA-gqx7-6552-67hf", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/oviva-ag/epa4all-client/security/advisories/GHSA-gqx7-6552-67hf"}, {"name": "https://github.com/oviva-ag/epa4all-client/pull/36", "tags": ["x_refsource_MISC"], "url": "https://github.com/oviva-ag/epa4all-client/pull/36"}], "affected": [{"vendor": "oviva-ag", "product": "epa4all-client", "versions": [{"version": "< 1.2.2", "status": "affected"}]}, {"vendor": "com.oviva.telematik", "product": "epa4all-client", "versions": [{"version": "< 1.2.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-26T21:01:51.745Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-gqx7-6552-67hf", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "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", "lastModified": "2026-05-26T21:16:40.373", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 5.2, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-05-26T21:16:40.373", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/oviva-ag/epa4all-client/pull/36"}, {"source": "security-advisories@github.com", "url": "https://github.com/oviva-ag/epa4all-client/security/advisories/GHSA-gqx7-6552-67hf"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-347"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}