CVE-2026-54342

HIGH SEVERITY

CVSS Score & Metrics

Base Score

8.1 / 10

Vector String

                                        CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N                                    

Vulnerability Description

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.

Vulnerability Details

Published Date

July 24, 2026

Last Modified

July 24, 2026

CWE ID

CWE-295

Source

NVD

Vendor

med-united

Product

epa4all

External References

https://github.com/med-united/epa4all/releases/tag/2026-05-20
https://github.com/med-united/epa4all/security/advisories/GHSA-296w-v8f6-3rf7
https://github.com/med-united/epa4all/security/advisories/GHSA-vvh7-x6c7-46gh
https://www.machinespirits.com/advisory/b98b02

CVE-2026-54342

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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