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CVE-2026-34359

Estado: AnalizadaCrítica (9.1)—

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.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vulnerabilidad de matching deficiente de URL (CWE-346) en servicio FHIR expuesto en red; atacante expone dominio similar para interceptar credenciales (Bearer, Basic, API keys) mediante redirección. AV:N, PR:N, UI:N confirma T1190.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementApplication Isolation and SandboxingExploit ProtectionUpdate SoftwareApplication Developer GuidanceVulnerability Scanning

Tecnologías afectadas (1)

Hapifhir — HL7 Fhir Core

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2026-34359",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "id": "CVE-2026-34359",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-03-31T18:39:23.690008Z"
        }
      }
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    "cvssMetricV31": [
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          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
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          "privilegesRequired": "NONE",
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  "published": "2026-03-31T17:16:31.937",
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        "Vendor Advisory"
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-346"
        }
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    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "HAPI FHIR es una implementación completa del estándar HL7 FHIR para la interoperabilidad en el sector de la salud en Java. Antes de la versión 6.9.4, ManagedWebAccessUtils.getServer() utiliza String.startsWith() para hacer coincidir las URL de solicitud con las URL de servidor configuradas para el envío de credenciales de autenticación. Debido a que las URL de servidor configuradas (por ejemplo, http://tx.fhir.org) carecen de una barra final o de una verificación de límite de host, un dominio controlado por un atacante como http://tx.fhir.org.attacker.com coincide con el prefijo y recibe tokens Bearer, credenciales de autenticación Basic o claves API cuando el cliente HTTP sigue una redirección a ese dominio. Este problema ha sido parcheado en la versión 6.9.4."
    }
  ],
  "lastModified": "2026-07-24T20:10:00.147",
  "configurations": [
    {
      "nodes": [
        {
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          "cpeMatch": [
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              "versionEndExcluding": "6.9.4"
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          "operator": "OR"
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