CVE-2026-7574

{
  "id": "CVE-2026-7574",
  "sourceIdentifier": "[email protected]",
  "published": "2026-06-24T00:16:34.173",
  "lastModified": "2026-10-25T23:10:00.167",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Anthropic Claude Desktop Cowork VM image handling (confirmed across v1.1348.0 through v1.2278.0, including v1.1348.0, v1.1617.0, and v1.2278.0) validates only file presence and a version marker string before booting rootfs.img, but does not verify image content integrity at time-of-use. A local attacker with unprivileged code execution as the victim macOS user can modify the VM root filesystem image and have it trusted on subsequent Cowork VM boots, enabling persistent arbitrary code execution in the VM and access to host-mounted directories. The estimated CWE mapping is CWE-353 (Missing Support for Integrity Check)."
    },
    {
      "lang": "es",
      "value": "Gestión de imágenes de VM de Anthropic Claude Desktop Cowork (confirmado en las versiones v1.1348.0 a v1.2278.0, incluyendo v1.1348.0, v1.1617.0 y v1.2278.0) valida solo la presencia del archivo y una cadena de marcador de versión antes de arrancar rootfs.img, pero no verifica la integridad del contenido de la imagen en el momento de su uso. Un atacante local con ejecución de código sin privilegios como el usuario de macOS víctima puede modificar la imagen del sistema de archivos raíz de la VM y hacer que sea de confianza en los arranques posteriores de la VM de Cowork, lo que permite la ejecución de código arbitrario persistente en la VM y el acceso a directorios montados en el host. La asignación CWE estimada es CWE-353 (Falta de soporte para la verificación de integridad)."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Anthropic",
          "product": "Claude Desktop Cowork",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "1.1348.0",
              "lessThanOrEqual": "1.2278.0",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L",
          "baseScore": 8.7,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 2.0,
        "impactScore": 6.0
      }
    ],
    "ssvcV203": [
      {
        "source": "[email protected]",
        "ssvcData": {
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CNA",
          "version": "2.0.3"
        }
      },
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-06-24T13:03:53.789182Z",
          "id": "CVE-2026-7574",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-353"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://cfp.recon.cx/recon-2026/talk/DZUQYU/",
      "source": "[email protected]"
    },
    {
      "url": "https://takeonme.org/gcves/GCVE-1337-2026-00000000000000000000000000000000000000000000000001110111111101011111111110000000000000000000000000000000000000000000000000000001010",
      "source": "[email protected]"
    }
  ]
}