PT-2026-64407 · Med United · Epa4All

CVE-2026-54342 · Published 2026-07-24 · Updated 2026-07-24

Mitre

CVSS v3.1

8.1

High

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

In epa4all, prior to version 2026-05-20, an attacker on the network path between epa4all and any backend (ePA Aktensystem, Konnektor, IDP, TSS) can present a self-signed TLS certificate and intercept the connection. For non-VAU connections (Konnektor, IDP), this allows direct read and modification of the inner traffic, including smartcard operations and OIDC authentication exchanges. For the ePA backend, the disabled TLS verification is the transport-level enabler for the VAU MITM described in GHSA-vvh7-x6c7-46gh. This issue has been patched in version 2026-05-20.

Fix

Improper Certificate Validation

Weakness Enumeration

CWE-295

Related Identifiers

CVE-2026-54342

Affected Products

Epa4All

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-54342 · Security Note
• https://github.com/med-united/epa4all/releases/tag/2026-05-20 · Note
• https://machinespirits.com/advisory/b98b02 · Note
• https://github.com/med-united/epa4all/security/advisories/GHSA-vvh7-x6c7-46gh · Note
• https://github.com/med-united/epa4all/security/advisories/GHSA-296w-v8f6-3rf7 · Note