https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-07T23:33:39.571721+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/euvd-2026-322421 EUVD-2026-322421 2026-10-07T23:33:39.617848+00:00 EUVD-2026-322421 https://cve.radiocsirt.org/vuln/fkie_cve-2026-45575 fkie_cve-2026-45575 2026-10-07T23:33:39.617886+00:00

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.

 https://cve.radiocsirt.org/vuln/ghsa-gqx7-6552-67hf GHSA-gqx7-6552-67hf — Improper Verification of Cryptographic Signature in com.oviva.telematik:epa4all-client 2026-10-07T23:33:39.617921+00:00

Affected: Maven: com.oviva.telematik:epa4all-client

### Impact 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 u ri_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.

### Patches [#36](https://github.com/oviva-ag/epa4all-client/pull/36)

### Workarounds None.

### Resources - MS-OVIVA-EPA4ALL-d453c1

### Credits [Machine Spirits](https://machinespirits.com/) ([contact@machinespirits.de](mailto:contact@machinespirits.de))

- Dr. rer. nat. Simon Weber - Dipl.-Inf. Volker Schönefeld - Chiara Fliegner