CVE-2026-34360 in hapifhir org.hl7.fhir.core

Résumé (Anglaise)

HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. Prior to version 6.9.4, the /loadIG HTTP endpoint in the FHIR Validator HTTP service accepts a user-supplied URL via JSON body and makes server-side HTTP requests to it without any hostname, scheme, or domain validation. An unauthenticated attacker with network access to the validator can probe internal network services, cloud metadata endpoints, and map network topology through error-based information leakage. With explore=true (the default for this code path), each request triggers multiple outbound HTTP calls, amplifying reconnaissance capability. This issue has been patched in version 6.9.4.

Responsable

GitHub_M

Réserver

27/03/2026

Divulgation

31/03/2026

Entrées

VulDB provides additional information and datapoints for this CVE:

ID	Vulnérabilité	CWE	Exp	Con	CVE
354461	hapifhir org.hl7.fhir.core HTTP loadIG élévation de privilèges	918	Non défini	Correctif officiel	CVE-2026-34360