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CVE-2026-54342— TLS Certificate Verification Disabled on CXF Transport Clients in epa4all

Quick assessment

Affected
med-united epa4all
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

med-united epa4all是med-united组织的一款服务器设备与网络产品。 med-united epa4all 2026-05-20之前版本存在加密问题漏洞，该漏洞源于TLS验证被禁用，可能导致中间人攻击者拦截连接并读取和修改内部流量，包括智能卡操作和OIDC认证交换。

CVSS 8.1 · High EPSS 0.20% · P8

Affected Version Matrix 1

VendorProduct Version RangeStatus
med-united epa4all < 2026-05-20 affected
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I. Basic Information for CVE-2026-54342

Vulnerability Information
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Vulnerability Title
TLS Certificate Verification Disabled on CXF Transport Clients in epa4all
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
med-united epa4all 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
med-united epa4all是med-united组织的一款服务器设备与网络产品。 med-united epa4all 2026-05-20之前版本存在加密问题漏洞，该漏洞源于TLS验证被禁用，可能导致中间人攻击者拦截连接并读取和修改内部流量，包括智能卡操作和OIDC认证交换。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
med-united epa4all < 2026-05-20 -

II. Public POCs for CVE-2026-54342

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8684 chars
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In-depth vulnerability mechanism
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POC zip download
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III. Intelligence Information for CVE-2026-54342

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Vendor Advisories for CVE-2026-54342 (2)

News Coverage for CVE-2026-54342 (1)

Other References for CVE-2026-54342 (1)

IV. Related Vulnerabilities

Same product: epa4all
Same vendor: med-united
Same weakness: CWE-295

V. Comments for CVE-2026-54342

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