PT-2026-64406 · Med United · Epa4All

CVE-2026-48021 · Published 2026-07-24 · Updated 2026-07-24

Mitre

CVSS v3.1

9.1

Critical

Base vector

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

In epa4all, prior to version 2026-05-20, an attacker who can intercept the TLS connection between epa4all and the ePA backend can complete the VAU handshake with attacker-controlled keys and obtain the session encryption keys. All inner HTTP traffic (patient consent decisions, medication data, document operations, authorization tokens, and entitlement queries) becomes readable and modifiable. The attacker can also inject arbitrary requests through the hijacked channel. This issue has been patched in version 2026-05-20.

Fix

Improper Certificate Validation

Improper Verification of Cryptographic Signature

Weakness Enumeration

CWE-295

CWE-347

Related Identifiers

CVE-2026-48021

Affected Products

Epa4All

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-48021 · Security Note
• https://github.com/med-united/epa4all/security/advisories/GHSA-vvh7-x6c7-46gh · Note
• https://github.com/med-united/epa4all/releases/tag/2026-05-20 · Note
• https://machinespirits.com/advisory/aa49f0 · Note