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CVE-2026-46695

Estado: AplazadaCrítica (10)—

Boxlite is a sandbox service that allows users to create lightweight virtual machines (Boxes) and launch OCI containers within them to run untrusted code. Prior to version 0.9.0, Boxlite does not restrict the kernel capabilities available inside the container, malicious code can remount the directory in rw mode, thereby gaining write access to that directory. This allows malicious code to perform arbitrary write operations on directories that should be read-only. This issue has been patched in version 0.9.0.

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 remota (AV:N, PR:N) en servicio expuesto Boxlite; remontaje de directorios permite manipular archivos read-only y escalar privilegios de contenedor (CWE-284: permisos inapropiados).

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

Vulnerability ScanningRestrict File and Directory PermissionsPrivileged Account ManagementRemote Data StorageNetwork SegmentationLimit Access to Resource Over Network

Tecnologías afectadas (1)

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

Boxlite — BoxliteAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-46695",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-46695",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-06-11T12:38:00.432896Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 10,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.8,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "boxlite-ai",
          "product": "boxlite",
          "versions": [
            {
              "status": "affected",
              "version": "< 0.9.0"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-06-10T23:16:47.747",
  "references": [
    {
      "url": "https://github.com/boxlite-ai/boxlite/pull/454",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/boxlite-ai/boxlite/releases/tag/v0.9.0",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/boxlite-ai/boxlite/security/advisories/GHSA-g6ww-w5j2-r7x3",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/boxlite-ai/boxlite/security/advisories/GHSA-g6ww-w5j2-r7x3",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-284"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Boxlite is a sandbox service that allows users to create lightweight virtual machines (Boxes) and launch OCI containers within them to run untrusted code. Prior to version 0.9.0, Boxlite does not restrict the kernel capabilities available inside the container, malicious code can remount the directory in rw mode, thereby gaining write access to that directory. This allows malicious code to perform arbitrary write operations on directories that should be read-only. This issue has been patched in version 0.9.0."
    },
    {
      "lang": "es",
      "value": "Boxlite es un servicio de sandbox que permite a los usuarios crear máquinas virtuales ligeras (Boxes) y lanzar contenedores OCI dentro de ellas para ejecutar código no confiable. Antes de la versión 0.9.0, Boxlite no restringe las capacidades del kernel disponibles dentro del contenedor, el código malicioso puede remontar el directorio en modo rw, obteniendo así acceso de escritura a ese directorio. Esto permite al código malicioso realizar operaciones de escritura arbitrarias en directorios que deberían ser de solo lectura. Este problema ha sido parcheado en la versión 0.9.0."
    }
  ],
  "lastModified": "2026-07-23T09:10:00.113",
  "sourceIdentifier": "security-advisories@github.com"
}