pillow — security advisory

{
  "id": "dee86f5afa95bf75b982e234dddbc3129898c9db1770d39e7d38266f53936b6f",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-59203",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2026-59203",
    "summary": "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.",
    "evidence": "osv:DEBIAN-CVE-2026-59203",
    "products": [
      {
        "name": {
          "value": "pillow",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "12.3.0-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "11.1.0-5",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "11.2.1-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "11.3.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "12.0.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "12.1.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "12.1.1-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "12.1.1-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "12.2.0-1",
            "evidence": "/affected/0/versions"
          }
        ]
      }
    ],
    "severity": "high",
    "structured": {
      "id": "DEBIAN-CVE-2026-59203",
      "aliases": [
        "DEBIAN-CVE-2026-59203"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "12.3.0-1"
                }
              ]
            }
          ],
          "package": {
            "name": "pillow",
            "purl": "pkg:deb/debian/pillow?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "versions": [
            "11.1.0-5",
            "11.2.1-1",
            "11.3.0-1",
            "12.0.0-1",
            "12.1.0-1",
            "12.1.1-1",
            "12.1.1-2",
            "12.2.0-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-59203.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-25T09:47:27.719957124Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-59203"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2026-59203"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-59203",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 445157,
  "published_at": "2026-07-14T16:17:02.063+00:00"
}