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CVE-2026-105743

Estado: AnalizadaMedia (5.8)—

Docling simplifica el procesamiento de documentos analizando formatos diversos y proporcionando integraciones con el ecosistema de IA generativa. Desde la 2.91.0 hasta la 2.132.0, validate_url_safety en docling/backend/utils/image_resource_loader.py valida un nombre de host con una única búsqueda IPv4 y después permite que el cliente HTTP resuelva y analice de nuevo la URL original, lo que permite que el DNS rebinding, los registros con direcciones públicas e internas mezcladas y la discrepancia del analizador sobre la autoridad con barra invertida alcancen servicios internos.

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HTMLBackendOptions(render_page=True) también permite solicitudes del navegador HTTP y HTTPS sin validar su destino resuelto. La explotación requiere que la obtención remota esté habilitada, y el contenido de la respuesta solo se expone cuando se decodifica como imagen o se renderiza pasivamente en una captura de pantalla de la página. Este problema se ha corregido en la 2.132.0.

Traducción automática del texto original de NVD (en inglés).

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 SSRF/DNS rebinding en servicio web expuesto (AV:N, PR:N). Permite acceso a servicios internos mediante rebinding (T1090) e información de respuestas HTTP (T1005).

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

Filter Network TrafficVulnerability ScanningSSL/TLS InspectionPrivileged Account ManagementNetwork SegmentationNetwork Intrusion Prevention

Tecnologías afectadas (1)

Docling — Docling

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-105743",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "id": "CVE-2026-105743",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-08T02:28:00.752216Z"
        }
      }
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          "integrityImpact": "NONE",
          "userInteraction": "NONE",
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          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
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        "Vendor Advisory"
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  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "value": "CWE-367"
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        {
          "lang": "en",
          "value": "CWE-918"
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  "descriptions": [
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      "value": "Docling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. From 2.91.0 until 2.132.0, validate_url_safety in docling/backend/utils/image_resource_loader.py validates a hostname with a single IPv4 lookup and then allows the HTTP client to resolve and parse the original URL again, permitting DNS rebinding, mixed public and internal address records, and backslash authority parser disagreement to reach internal services. HTMLBackendOptions(render_page=True) also allows HTTP and HTTPS browser requests without validating their resolved destination. Exploitation requires remote fetching to be enabled, and response content is exposed only when it is decoded as an image or passively rendered in a page screenshot. This issue is fixed in 2.132.0."
    }
  ],
  "lastModified": "2026-10-08T03:16:34.960",
  "configurations": [
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