Vulnerability in Med-united Epa4all
CVE-2026-48021
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 HT…
Vulnerability class: Improper Certificate Validation
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Med-united Epa4all — versions < 2026-05-20
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-48021?
- CVE-2026-48021 is a critical-severity vulnerability in Med-united Epa4all, classified under Improper Certificate Validation. CVSS score: 9.1/10. Published 2026-07-24.
- How severe is CVE-2026-48021?
- Critical severity. CVSS v3 base score is 9.1 out of 10.