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CVE-2026-65056

Estado: AplazadaAlta (8.3)—

mcp-webresearch 0.1.7 contains a server-side request forgery vulnerability that allows attackers to access internal network services by supplying loopback, link-local, or cloud metadata addresses to the visit_page tool, which only validates the URL protocol without filtering private or reserved IP ranges. Attackers can steer the LLM-controlled URL argument through prompt injection to navigate the server's Playwright browser to internal endpoints such as cloud instance metadata services, causing the server to return sensitive internal page content including credentials into the model context.

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.

SSRF requiere interacción del usuario (UI:A, prompt injection): T1203. Impactos: proxy SSRF (T1090.003) accede a servicios internos; credenciales de metadatos (T1552.007) según descripción explícita.

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

User Account ManagementPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkFilter Network TrafficApplication Isolation and Sandboxing

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Mcp-webresearch — Mcp-webresearchAI

CWE

Referencias

JSON original (NVD)

Mostrar
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          "id": "CVE-2026-65056",
          "role": "CISA Coordinator",
          "options": [
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              "automatable": "no"
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          "version": "2.0.3",
          "timestamp": "2026-07-22T14:59:19.107962Z"
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      "url": "https://www.npmjs.com/package/@mzxrai/mcp-webresearch",
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    }
  ],
  "lastModified": "2026-07-23T15:24:59.880",
  "sourceIdentifier": "disclosure@vulncheck.com"
}