Traffic interception via trust-all TLS clients
Published Jul 24, 2026 · Updated Jul 24, 2026
Improper certificate validation in service health erx GmbH ePA4all before 2026-05-20 allows man-in-the-middle attackers to alter backend traffic. SSLUtils installs an X509TrustManager with empty certificate checks, while CXF and JDK HTTP clients also suppress hostname verification. Exploitation requires a position on the backend network path and exposes non-VAU smartcard and OIDC traffic to direct reading and modification.
Summary
What happened
Improper certificate validation in service health erx GmbH ePA4all before 2026-05-20 allows man-in-the-middle attackers to alter backend traffic. SSLUtils installs an X509TrustManager with empty certificate checks, while CXF and JDK HTTP clients also suppress hostname verification. Exploitation requires a position on the backend network path and exposes non-VAU smartcard and OIDC traffic to direct reading and modification.
The record
- CVE
- CVE-2026-54342
- Published
- Jul 24, 2026
- Updated
- Jul 24, 2026
- Vendor
- service health erx GmbH
- Product
- ePA4all
- Classifications
- CWE-295, T1557
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 24, 2026CVE publishedPublication date reported by the CVE source.
- Jul 24, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=< 2026-05-20
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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