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CVE-2026-34361

nvd nist
Published: Mar 31, 2026Modified: Apr 3, 2026

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9.3
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
Exploitability: 3.9 / Impact: 4.7
Source: NVD

Description

HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. Prior to version 6.9.4, the FHIR Validator HTTP service exposes an unauthenticated "/loadIG" endpoint that makes outbound HTTP requests to attacker-controlled URLs. Combined with a startsWith() URL prefix matching flaw in the credential provider (ManagedWebAccessUtils.getServer()), an attacker can steal authentication tokens (Bearer, Basic, API keys) configured for legitimate FHIR servers by registering a domain that prefix-matches a configured server URL. This issue has been patched in version 6.9.4.

Affected (1)

Hapifhir
1 product
Hl7 Fhir Core
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Hl7 Fhir Core
Before 6.9.4

Related CWEs

CWE-552
Files or Directories Accessible to External Parties
The product makes files or directories accessible to unauthorized actors, even though they should not be.

References (1)

Source: security-advisories@github.com
ExploitVendor Advisory

Timeline

No history available yet.