CVE-2026-47747

{
  "id": "CVE-2026-47747",
  "sourceIdentifier": "[email protected]",
  "published": "2026-06-16T20:16:44.163",
  "lastModified": "2026-10-25T23:10:00.167",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "stable-diffusion.cpp is a pure C/C++ library for running diffusion model (Stable Diffusion, Flux, Wan, Qwen Image, Z-Image, and more) inference. In versions prior to master-584-0a7ae07, the pickle .ckpt parser in src/model.cpp contained a heap buffer overflow vulnerability in the BINUNICODE opcode handler. The issue was caused by sign confusion on the opcode length field. A crafted .ckpt file could trigger memcpy with a very large length derived from a negative signed value, causing immediate heap corruption.\nThe issue has been resolved in version master-584-0a7ae07. If developers are unable to immediately update their applications they can work around this issue by only loading .ckpt checkpoint files from trusted sources and preferring trusted model sources and safer formats such as .safetensors where possible."
    },
    {
      "lang": "es",
      "value": "stable-diffusion.cpp es una biblioteca pura de C/C++ para ejecutar inferencia de modelos de difusión (Stable Diffusion, Flux, Wan, Qwen Image, Z-Image, y más). En versiones anteriores a master-584-0a7ae07, el analizador pickle .ckpt en src/model.cpp contenía una vulnerabilidad de desbordamiento de búfer de montón en el gestor del código de operación BINUNICODE. El problema fue causado por una confusión de signo en el campo de longitud del código de operación. Un archivo .ckpt manipulado podría activar memcpy con una longitud muy grande derivada de un valor con signo negativo, causando corrupción inmediata del montón.\nEl problema ha sido resuelto en la versión master-584-0a7ae07. Si los desarrolladores no pueden actualizar inmediatamente sus aplicaciones, pueden solucionar este problema cargando solo archivos de punto de control .ckpt de fuentes confiables y prefiriendo fuentes de modelos confiables y formatos más seguros como .safetensors cuando sea posible."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "leejet",
          "product": "stable-diffusion.cpp",
          "versions": [
            {
              "version": "< master-584-0a7ae07",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-06-17T18:11:20.505716Z",
          "id": "CVE-2026-47747",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-122"
        },
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:leejet:stable-diffusion.cpp:*:*:*:*:*:c\\+\\+:*:*",
              "versionEndExcluding": "master-584-0a7ae07",
              "matchCriteriaId": "EF9A4C1B-8396-48E6-8E46-3A3767DA17FC"
            }
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  "references": [
    {
      "url": "https://github.com/leejet/stable-diffusion.cpp/commit/0a7ae07f948eff4611968a65a22bd7c7031ad74f",
      "source": "[email protected]",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://github.com/leejet/stable-diffusion.cpp/pull/1443",
      "source": "[email protected]",
      "tags": [
        "Issue Tracking",
        "Patch"
      ]
    },
    {
      "url": "https://github.com/leejet/stable-diffusion.cpp/security/advisories/GHSA-mghm-5mqc-pwmp",
      "source": "[email protected]",
      "tags": [
        "Exploit",
        "Mitigation",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://github.com/leejet/stable-diffusion.cpp/security/advisories/GHSA-mghm-5mqc-pwmp",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "Mitigation",
        "Vendor Advisory"
      ]
    }
  ]
}