Pillow: Invalid free in FreeType glyph rendering when a stroker is active

{
  "id": "34af9d6287352ef4e27c50d0908465aa46f9a8d6e4c4534a39196e87dc6fec8c",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-112893",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Pillow: Invalid free in FreeType glyph rendering when a stroker is active",
    "summary": "Pillow is a Python imaging library. From 10.0.0 until 13.0.0, Pillow can free an invalid glyph pointer during FreeType rendering with an active stroker. If FT_Load_Glyph fails, cleanup may call FT_Done_Glyph on an uninitialized or stale glyph variable. An attacker can supply a malformed font as untrusted bytes to an application that draws text with a nonzero stroke width, forcing the glyph-load failure path. This can corrupt memory or crash the process. This issue is fixed in version 13.0.0.",
    "evidence": "cve:CVE-2026-112893",
    "products": [
      {
        "name": {
          "value": "Pillow",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-112893",
      "aliases": [
        "CVE-2026-112893"
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "version": "4.0",
            "baseScore": 8.2,
            "attackVector": "NETWORK",
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
            "userInteraction": "NONE",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "privilegesRequired": "NONE",
            "subIntegrityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "subAvailabilityImpact": "NONE",
            "vulnAvailabilityImpact": "HIGH",
            "subConfidentialityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE"
          }
        }
      ],
      "affected": [
        {
          "vendor": "python-pillow",
          "product": "Pillow",
          "versions": [
            {
              "status": "affected",
              "version": ">= 10.0.0, < 13.0.0"
            }
          ]
        }
      ],
      "modified": "2026-10-28T15:12:48.729Z",
      "provider": "cve",
      "references": [
        "https://github.com/python-pillow/Pillow/security/advisories/GHSA-j4m9-6w36-pw47",
        "https://github.com/python-pillow/Pillow/commit/a7416de7f3a43128179d2cf68df3240ea8dafe13",
        "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-2026-112893",
                    "role": "CISA Coordinator",
                    "options": [
                      {
                        "Exploitation": "poc"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "version": "2.0.3",
                    "timestamp": "2026-10-28T15:12:41.070493Z"
                  }
                }
              }
            ],
            "references": [
              {
                "url": "https://github.com/python-pillow/Pillow/security/advisories/GHSA-j4m9-6w36-pw47",
                "tags": [
                  "exploit"
                ]
              }
            ],
            "providerMetadata": {
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP",
              "dateUpdated": "2026-10-28T15:12:48.729Z"
            }
          }
        ],
        "cna": {
          "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
          "shortName": "GitHub_M",
          "dateUpdated": "2026-10-19T21:53:49.979Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-112893",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 454318,
  "published_at": "2026-10-19T21:53:49.979+00:00"
}