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CVE-2026-33744

Estado: AnalizadaAlta (7.8)—

BentoML is a Python library for building online serving systems optimized for AI apps and model inference. Prior to 1.4.37, the `docker.system_packages` field in `bentofile.yaml` accepts arbitrary strings that are interpolated directly into Dockerfile `RUN` commands without sanitization. Since `system_packages` is semantically a list of OS package names (data), users do not expect values to be interpreted as shell commands. A malicious `bentofile.yaml` achieves arbitrary command execution during `bentoml containerize` / `docker build`. Version 1.4.37 fixes the issue.

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.

Vector AV:L/UI:R indica ejecución en cliente (interacción con bentofile.yaml). CWE-94 (deserialization de código) + interpolación sin sanitizar en RUN de Docker confirma ejecución arbitraria de comandos durante containerize.

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

Restrict Web-Based ContentPrivileged Account ManagementLimit Software InstallationExecution PreventionBehavior Prevention on EndpointDisable or Remove Feature or Program

Tecnologías afectadas (1)

Bentoml — Bentoml

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-33744",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-33744",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-03-27T20:01:10.256531Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "source": "security-advisories@github.com",
        "cvssData": {
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          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "bentoml",
          "product": "BentoML",
          "versions": [
            {
              "status": "affected",
              "version": "< 1.4.37"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-03-27T01:16:21.007",
  "references": [
    {
      "url": "https://github.com/bentoml/BentoML/security/advisories/GHSA-jfjg-vc52-wqvf",
      "tags": [
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        "Mitigation",
        "Vendor Advisory"
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    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "BentoML is a Python library for building online serving systems optimized for AI apps and model inference. Prior to 1.4.37, the `docker.system_packages` field in `bentofile.yaml` accepts arbitrary strings that are interpolated directly into Dockerfile `RUN` commands without sanitization. Since `system_packages` is semantically a list of OS package names (data), users do not expect values to be interpreted as shell commands. A malicious `bentofile.yaml` achieves arbitrary command execution during `bentoml containerize` / `docker build`. Version 1.4.37 fixes the issue."
    },
    {
      "lang": "es",
      "value": "BentoML es una biblioteca de Python para construir sistemas de servicio en línea optimizados para aplicaciones de IA e inferencia de modelos. Antes de la versión 1.4.37, el campo 'docker.system_packages' en 'bentofile.yaml' aceptaba cadenas arbitrarias que se interpolaban directamente en los comandos 'RUN' de Dockerfile sin sanitización. Dado que 'system_packages' es semánticamente una lista de nombres de paquetes del sistema operativo (datos), los usuarios no esperan que los valores se interpreten como comandos de shell. Un 'bentofile.yaml' malicioso logra la ejecución arbitraria de comandos durante 'bentoml containerize' / 'docker build'. La versión 1.4.37 corrige el problema."
    }
  ],
  "lastModified": "2026-06-17T10:38:01.490",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
              "matchCriteriaId": "C913A594-9EEC-40AC-A218-6FEA1F57E614",
              "versionEndExcluding": "1.4.37"
            }
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          "operator": "OR"
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  "sourceIdentifier": "security-advisories@github.com"
}