CVE-2026-96644

{
  "id": "CVE-2026-96644",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-21T21:20:32.943",
  "lastModified": "2026-10-28T19:19:28.633",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Pillow is a Python imaging library. Prior to 13.0.0 on Windows, src/PIL/WmfImagePlugin.py passes unchecked 32-bit WMF or EMF dimensions to the native drawwmf handler in src/display.c. The handler sizes a DIB allocation from 16-bit-truncated bcWidth and bcHeight fields but copies pixel data using the original full dimensions. A crafted wide, short metafile can pass the pixel-count decompression-bomb check and make the Windows-only renderer read beyond the heap buffer, potentially disclosing memory or crashing the process. This issue is fixed in version 13.0.0."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "python-pillow",
          "product": "Pillow",
          "versions": [
            {
              "version": "< 13.0.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
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        "type": "Secondary",
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          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "userInteraction": "PASSIVE",
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          "vulnIntegrityImpact": "NONE",
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          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
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          "modifiedAttackRequirements": "NOT_DEFINED",
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          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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          "Automatable": "NOT_DEFINED",
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          "valueDensity": "NOT_DEFINED",
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          "scope": "UNCHANGED",
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          "timestamp": "2026-10-28T18:22:22.322892Z",
          "id": "CVE-2026-96644",
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      "type": "Secondary",
      "description": [
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          "value": "CWE-125"
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  "references": [
    {
      "url": "https://github.com/python-pillow/Pillow/commit/4cf46bee338304c5c8968fd7f132ba0d40c428b7",
      "source": "[email protected]",
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      "source": "[email protected]",
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      "url": "https://github.com/python-pillow/Pillow/releases/tag/13.0.0",
      "source": "[email protected]",
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