CyberSecBulletin

Oviva-ag vulnerabilities

We track 3 vulnerabilities in Oviva-ag products. 3 are rated high or critical, and none are known to be exploited. The most recent was published on May 26, 2026.

3vulnerabilities
0critical
3high
0exploited
7.9average CVSS score

Latest Oviva-ag vulnerabilities

  • 8.1 High severity

    epa4all-client: Improper Certificate Validation

    CVE-2026-45574Oviva-ag

    epa4all-client is the Java Client for epa4all / ePA 3.0 in the Telematik Infrastruktur. Prior to 1.2.2, 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

  • 8.1 High severity

    epa4all-client: Improper Certificate Validation

    CVE-2026-44900Oviva-ag

    epa4all-client is the Java Client for epa4all / ePA 3.0 in the Telematik Infrastruktur. Prior to 1.2.1, in SignedPublicKeysTrustValidatorImpl.isTrusted(), the ECDSA signature verification at line 45 discards the boolean return value of Signature.verify(). The

  • 7.4 High severity

    epa4all-client: Improper Verification of Cryptographic Signature

    CVE-2026-45575Oviva-ag

    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 do