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I. Basic Information for CVE-2026-34359
Vulnerability Information

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Vulnerability Title
HAPI FHIR: Authentication Credential Leakage via Improper URL Prefix Matching on HTTP Redirect in HAPI FHIR Core
Source: NVD (National Vulnerability Database)
Vulnerability Description
HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. Prior to version 6.9.4, ManagedWebAccessUtils.getServer() uses String.startsWith() to match request URLs against configured server URLs for authentication credential dispatch. Because configured server URLs (e.g., http://tx.fhir.org) lack a trailing slash or host boundary check, an attacker-controlled domain like http://tx.fhir.org.attacker.com matches the prefix and receives Bearer tokens, Basic auth credentials, or API keys when the HTTP client follows a redirect to that domain. This issue has been patched in version 6.9.4.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
源验证错误
Source: NVD (National Vulnerability Database)
Vulnerability Title
HAPI FHIR 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HAPI FHIR是HAPI FHIR开源的一个Java编写的 HL7 FHIR API。 HAPI FHIR 6.9.4之前版本存在安全漏洞,该漏洞源于URL前缀匹配不当,可能导致凭据泄露。
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
VendorProductAffected VersionsCPESubscribe
hapifhirorg.hl7.fhir.core < 6.9.4 -
II. Public POCs for CVE-2026-34359
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III. Intelligence Information for CVE-2026-34359
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