CVE-2026-54342 TLS Certificate Verification Disabled on CXF Transport Clients in epa4all
Attackers can intercept network traffic and modify data by exploiting disabled TLS certificate verification in epa4all transport clients.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-54342?
CVE-2026-54342 is a high-severity vulnerability in med-united epa4all, published on 24 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-295
Which versions are affected by CVE-2026-54342?
How do I fix CVE-2026-54342?
No fix has been published for CVE-2026-54342 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-54342 being exploited?
There is no known exploitation of CVE-2026-54342 in the wild and no public exploit code.