Pillow tiled-TIFF decoder reads past tile buffer in copy4 (Unpack.c:1290)

{
  "id": "af0bfb123edd251b91fa376a5c2edf9fde00494d89471948ff984294adf6dc63",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-112395",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Pillow tiled-TIFF decoder reads past tile buffer in copy4 (Unpack.c:1290)",
    "summary": "Pillow is a Python imaging library. From 8.2.0 until 13.0.0, Pillow's tiled-TIFF decoder can read past the tile buffer while copying four-byte pixels. In _decodeTile, libtiff can return a tile allocation smaller than the required row stride multiplied by the tile length, and Pillow's stride-and-copy loop walks beyond that allocation. An attacker can supply a crafted tiled TIFF to an application that loads it. This can expose adjacent heap data in pixels or crash the process. This issue is fixed in version 13.0.0.",
    "evidence": "cve:CVE-2026-112395",
    "products": [
      {
        "name": {
          "value": "Pillow",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
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    "severity": "medium",
    "structured": {
      "id": "CVE-2026-112395",
      "aliases": [
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      "metrics": [
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          "cvssV3_1": {
            "scope": "UNCHANGED",
            "version": "3.1",
            "baseScore": 6.5,
            "attackVector": "NETWORK",
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
            "integrityImpact": "NONE",
            "userInteraction": "NONE",
            "attackComplexity": "LOW",
            "availabilityImpact": "LOW",
            "privilegesRequired": "NONE",
            "confidentialityImpact": "LOW"
          }
        }
      ],
      "affected": [
        {
          "vendor": "python-pillow",
          "product": "Pillow",
          "versions": [
            {
              "status": "affected",
              "version": ">= 8.2.0, < 13.0.0"
            }
          ]
        }
      ],
      "modified": "2026-10-28T15:24:49.805Z",
      "provider": "cve",
      "references": [
        "https://github.com/python-pillow/Pillow/security/advisories/GHSA-462x-pgg6-55fp",
        "https://github.com/python-pillow/Pillow/commit/76869efdbbf2ad7dccd7536520fb61b7a00ab61e",
        "https://github.com/python-pillow/Pillow/releases/tag/13.0.0"
      ],
      "provider_metadata": {
        "adp": [
          {
            "title": "CISA ADP Vulnrichment",
            "metrics": [
              {
                "other": {
                  "type": "ssvc",
                  "content": {
                    "id": "CVE-2026-112395",
                    "role": "CISA Coordinator",
                    "options": [
                      {
                        "Exploitation": "poc"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "partial"
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                    ],
                    "version": "2.0.3",
                    "timestamp": "2026-10-28T15:24:42.550709Z"
                  }
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              }
            ],
            "references": [
              {
                "url": "https://github.com/python-pillow/Pillow/security/advisories/GHSA-462x-pgg6-55fp",
                "tags": [
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            "providerMetadata": {
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        "cna": {
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          "shortName": "GitHub_M",
          "dateUpdated": "2026-10-19T20:59:15.098Z"
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    "related_cves": [
      {
        "value": "CVE-2026-112395",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 456110,
  "published_at": "2026-10-19T20:59:15.098+00:00"
}