HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. Prior to version 6.9.0, when setting headers in HTTP requests, the internal HTTP client sends headers first to the host in the initial URL but also, if asked to follow redirects and a 30X HTTP response code is returned, to the host mentioned in URL in the Location: response header value. Sending the same set of headers to subsequent hosts is a problem as this header often contains privacy sensitive information or data that could allow others to impersonate the client's request. This issue has been patched in release 6.9.0. No known workarounds are available.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-p7m9-v2cm-2h7m HAPI FHIR HTTP authentication leak in redirects
Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Fri, 20 Mar 2026 22:30:00 +0000

Type Values Removed Values Added
Description HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. Prior to version 6.9.0, when setting headers in HTTP requests, the internal HTTP client sends headers first to the host in the initial URL but also, if asked to follow redirects and a 30X HTTP response code is returned, to the host mentioned in URL in the Location: response header value. Sending the same set of headers to subsequent hosts is a problem as this header often contains privacy sensitive information or data that could allow others to impersonate the client's request. This issue has been patched in release 6.9.0. No known workarounds are available.
Title HAPI FHIR HTTP authentication leak in redirects
Weaknesses CWE-200
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-20T22:19:59.636Z

Reserved: 2026-03-17T22:16:36.720Z

Link: CVE-2026-33180

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-20T23:16:45.020

Modified: 2026-03-20T23:16:45.020

Link: CVE-2026-33180

cve-icon Redhat

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cve-icon OpenCVE Enrichment

No data.

Weaknesses