{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "83.0.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "dd9f436a36486b4cb8a4c70a2321548b0be09b8f"
            },
            {
              "fixed": "6519f728c6f23c992df81a5691ef7655184a20eb"
            }
          ],
          "repo": "https://github.com/pypa/setuptools",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-h35f-9h28-mq5c"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-176",
      "CWE-697"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59890.json"
  },
  "details": "setuptools is a package that allows users to download, build, install, upgrade, and uninstall Python packages. Prior to 83.0.0, FileList applied MANIFEST.in exclude, global-exclude, recursive-exclude, and prune directives by matching compiled glob patterns against on-disk file names without Unicode normalization, so on macOS APFS or HFS+ an NFD file name could bypass an NFC exclusion rule and be packed into a source distribution. This issue is fixed in version 83.0.0.",
  "id": "CVE-2026-59890",
  "modified": "2026-07-15T01:48:54.298558521Z",
  "published": "2026-07-08T16:02:07.519Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/pypa/setuptools/releases/tag/v83.0.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59890.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/pypa/setuptools/security/advisories/GHSA-h35f-9h28-mq5c"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59890"
    },
    {
      "type": "FIX",
      "url": "https://github.com/pypa/setuptools/commit/dd9f436a36486b4cb8a4c70a2321548b0be09b8f"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "setuptools: MANIFEST.in exclusion bypass in sdist via Unicode normalization collision (NFC/NFD) on macOS APFS/HFS+"
}