CVE-2026-49290

{
  "id": "CVE-2026-49290",
  "sourceIdentifier": "[email protected]",
  "published": "2026-06-19T18:16:19.750",
  "lastModified": "2026-10-25T23:10:00.167",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Slopsmith is a self-contained web application for browsing, playing, and practicing Rocksmith 2014 Custom DLC (CDLC). Prior to 0.2.9-alpha.5, a path-traversal vulnerability in Slopsmith's archive extractors allows an attacker to write arbitrary files outside the extraction directory by supplying a crafted PSARC or sloppak archive. With the default Docker configuration (running as root) and the ability to drop a file into the plugin directory, this escalates to arbitrary remote code execution on the host. Three archive extractors concatenated archive-entry filenames directly onto the extraction root without validation: `lib/psarc.py::unpack_psarc` — PSARC TOC filenames; `lib/patcher.py::unpack_psarc` — duplicate of the above in the patcher flow; `lib/sloppak.py::_unpack_zip` — bare `ZipFile.extractall()` with no member filter. Each accepts entry names containing `..` segments, absolute paths, or backslash separators. The Python `zipfile` module's default `extractall()` is documented as not preventing traversal when callers don't supply a member-filter callback. Version 0.2.9-alpha.5 patches the issue. Until updated, do not open PSARC or sloppak archives from untrusted sources, and do not expose the Slopsmith instance to the public internet. Docker users should also pull the latest image after the next slopsmith Docker image is published."
    },
    {
      "lang": "es",
      "value": "Slopsmith es una aplicación web autónoma para navegar, reproducir y practicar DLC personalizado (CDLC) de Rocksmith 2014. Antes de la versión 0.2.9-alpha.5, una vulnerabilidad de recorrido de ruta en los extractores de archivos de Slopsmith permite a un atacante escribir archivos arbitrarios fuera del directorio de extracción al proporcionar un archivo PSARC o sloppak manipulado. Con la configuración predeterminada de Docker (ejecutándose como root) y la capacidad de colocar un archivo en el directorio de plugins, esto escala a ejecución remota de código arbitraria en el host. Tres extractores de archivos concatenaron los nombres de archivo de las entradas del archivo directamente en la raíz de extracción sin validación: ’lib/psarc.py::unpack_psarc’ - nombres de archivo TOC de PSARC; ’lib/patcher.py::unpack_psarc’ - duplicado de lo anterior en el flujo del parcheador; ’lib/sloppak.py::_unpack_zip’ - un ’ZipFile.extractall()’ básico sin filtro de miembros. Cada uno acepta nombres de entrada que contienen segmentos ’..’, rutas absolutas o separadores de barra invertida. El ’extractall()’ predeterminado del módulo ’zipfile’ de Python está documentado como que no previene el recorrido cuando los llamadores no proporcionan una función de devolución de llamada de filtro de miembros. La versión 0.2.9-alpha.5 corrige el problema. Hasta que se actualice, no abra archivos PSARC o sloppak de fuentes no confiables y no exponga la instancia de Slopsmith a la internet pública. Los usuarios de Docker también deben extraer la última imagen después de que se publique la próxima imagen de Docker de Slopsmith."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "byrongamatos",
          "product": "slopsmith",
          "versions": [
            {
              "version": "< 0.2.9-alpha.5",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "baseScore": 7.6,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "HIGH",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "HIGH",
          "subIntegrityImpact": "HIGH",
          "subAvailabilityImpact": "HIGH",
          "exploitMaturity": "UNREPORTED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-06-22T17:04:05.730204Z",
          "id": "CVE-2026-49290",
          "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-22"
        },
        {
          "lang": "en",
          "value": "CWE-23"
        },
        {
          "lang": "en",
          "value": "CWE-36"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/byrongamatos/slopsmith/commit/9cccac12a",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/byrongamatos/slopsmith/security/advisories/GHSA-8wr9-348x-xwmr",
      "source": "[email protected]"
    },
    {
      "url": "https://web.archive.org/web/20260522065709/https://github.com/byrongamatos/slopsmith",
      "source": "[email protected]"
    },
    {
      "url": "https://web.archive.org/web/20260522065709/https://github.com/byrongamatos/slopsmith",
      "source": "[email protected]"
    },
    {
      "url": "https://web.archive.org/web/20260522065709/https://github.com/byrongamatos/slopsmith",
      "source": "[email protected]"
    },
    {
      "url": "https://web.archive.org/web/20260522065709/https://github.com/byrongamatos/slopsmith",
      "source": "[email protected]"
    }
  ]
}