CVE-2026-71235

{
  "id": "CVE-2026-71235",
  "sourceIdentifier": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
  "published": "2026-08-05T11:16:26.247",
  "lastModified": "2026-10-24T15:10:00.190",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Magistrala's Rules Engine allows authenticated users to create rules with embedded Go or Lua scripts executed server-side when IoT messages arrive. The Lua script engine (re/lua.go) performs no input validation at all and preloads dangerous libraries: db (arbitrary database access), ioutil (file I/O), an HTTP client (SSRF), and filepath (traversal)."
    },
    {
      "lang": "es",
      "value": "El motor de reglas de Magistrala permite a los usuarios autenticados crear reglas con scripts Go o Lua incrustados ejecutados en el lado del servidor cuando llegan mensajes de IoT. El motor de scripts Go (re/golang.go) ejecuta scripts a través del intérprete Yaegi con stdlib.Symbols, exponiendo la biblioteca estándar completa de Go (incluyendo os y net/http) con validación limitada a una expresión regular que bloquea goroutines y llamadas a panic(); funciones peligrosas como os.ReadFile, os.WriteFile, os.Remove y os.Environ permanecen totalmente accesibles. El motor de scripts Lua (re/lua.go) no realiza ninguna validación de entrada en absoluto y precarga bibliotecas peligrosas: db (acceso arbitrario a la base de datos), ioutil (E/S de archivos), un cliente HTTP (SSRF) y filepath (recorrido). Un usuario autenticado con bajos privilegios puede lograr lectura/escritura arbitraria de archivos, fuga de variables de entorno, acceso a la base de datos y SSRF contra microservicios internos."
    }
  ],
  "affected": [
    {
      "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
      "affectedData": [
        {
          "vendor": "absmach",
          "product": "magistrala",
          "defaultStatus": "unknown",
          "programFiles": [
            "re/golang.go",
            "re/lua.go"
          ],
          "versions": [
            {
              "version": "0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-05T12:51:37.660677Z",
          "id": "CVE-2026-71235",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/absmach/magistrala",
      "source": "309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c"
    }
  ]
}