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CVE-2026-24053

Estado: AnalizadaAlta (7.7)—

Claude Code is an agentic coding tool. Prior to version 2.0.74, due to a Bash command validation flaw in parsing ZSH clobber syntax, it was possible to bypass directory restrictions and write files outside the current working directory without user permission prompts. Exploiting this required the user to use ZSH and the ability to add untrusted content into a Claude Code context window. This issue has been patched in version 2.0.74.

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.

XSS-like bypass (CWE-79) mediante contenido sin validar en Claude Code permite escritura de archivos fuera del directorio permitido (CWE-22). La interacción del usuario (UI:P) al agregar contenido untrusted y el uso de sintaxis ZSH hacen que T1189 sea aplicable; impacto primario T1565.002 (manipulac

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 TrainingRestrict Web-Based ContentExecution PreventionEncrypt Sensitive InformationApplication Isolation and SandboxingExploit Protection

Tecnologías afectadas (1)

Anthropic — Claude Code

CWE

Referencias

JSON original (NVD)

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          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "none"
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            },
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          "version": "2.0.3",
          "timestamp": "2026-02-03T21:22:17.897905Z"
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          "integrityImpact": "HIGH",
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          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
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        "exploitabilityScore": 2.8
      }
    ],
    "cvssMetricV40": [
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        "type": "Secondary",
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        "cvssData": {
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          "valueDensity": "NOT_DEFINED",
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          "subIntegrityImpact": "NONE",
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          "integrityRequirement": "NOT_DEFINED",
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          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
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          "modifiedAttackRequirements": "NOT_DEFINED",
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          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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  "published": "2026-02-03T21:16:13.220",
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  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "CWE-22"
        },
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        }
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    {
      "type": "Primary",
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    },
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      "lang": "es",
      "value": "Claude Code es una herramienta de codificación agéntica. Antes de la versión 2.0.74, debido a una falla de validación de comandos Bash al analizar la sintaxis de sobrescritura de ZSH, era posible eludir las restricciones de directorio y escribir archivos fuera del directorio de trabajo actual sin avisos de permiso del usuario. Explotar esto requería que el usuario utilizara ZSH y la capacidad de añadir contenido no confiable en una ventana de contexto de Claude Code. Este problema ha sido parcheado en la versión 2.0.74."
    }
  ],
  "lastModified": "2026-06-17T10:22:31.733",
  "configurations": [
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