{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "12.0.0"
              },
              {
                "fixed": "12.3.0"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "693df7b42c666f88c719f9973be0ad71607328e0"
            },
            {
              "fixed": "bb1d8e8ab8d29048624d96e3ee53cecf7c13d13d"
            },
            {
              "fixed": "03992618118b4a76b6163cd72ab5ecd684133b83"
            }
          ],
          "repo": "https://github.com/python-pillow/pillow",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-pg7v-jwj7-p798"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-835"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59203.json"
  },
  "details": "Pillow is a Python imaging library. From 12.0.0 through 12.2.0, Pillow's EPS parser in PIL/EpsImagePlugin.py accepts a negative byte count in the %%BeginBinary directive, allowing a crafted EPS file to cause Image.open() to seek backwards to the same directive and parse it repeatedly in an infinite loop. This issue is fixed in version 12.3.0.",
  "id": "CVE-2026-59203",
  "modified": "2026-07-17T03:41:36.069921978Z",
  "published": "2026-07-14T15:43:58.333Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/python-pillow/Pillow/releases/tag/12.3.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59203.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/python-pillow/Pillow/security/advisories/GHSA-pg7v-jwj7-p798"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59203"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python-pillow/Pillow/commit/03992618118b4a76b6163cd72ab5ecd684133b83"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python-pillow/Pillow/pull/9708"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Pillow EpsImagePlugin negative %%BeginBinary byte count causes infinite loop denial of service"
}