What is CVE-2026-45575?

CVE-2026-45575 is a high-severity vulnerability in Com.oviva.telematik Epa4all-client, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.4/10. Published 2026-05-26.

How severe is CVE-2026-45575?

High severity. CVSS v3 base score is 7.4 out of 10.

Vulnerability in Com.oviva.telematik Epa4all-client

CVE-2026-45575

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 do…

EPSS: 0.000 (0.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Com.oviva.telematik Epa4all-client — versions < 1.2.2
Oviva-ag Epa4all-client — versions < 1.2.2

Weakness classification (CWE)

CWE-347 — Improper Verification of Cryptographic Signature

References

security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-45575?: CVE-2026-45575 is a high-severity vulnerability in Com.oviva.telematik Epa4all-client, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.4/10. Published 2026-05-26.
How severe is CVE-2026-45575?: High severity. CVSS v3 base score is 7.4 out of 10.