{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2.27.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "09c95b7842844f4e857c88f669e1c666db405c71"
            }
          ],
          "repo": "https://github.com/pdm-project/pdm",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-78v8-vpjp-cjqh"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47764.json"
  },
  "details": "pdm is a Python package and dependency manager supporting the latest PEP standards. Versions prior to 2.27.0 are vulnerable to path traversal through write_to_fs. InstallDestination.write_to_fs() in src/pdm/installers/installers.py overrides the base class to add symlink/hardlink support but replaces the safe _path_with_destdir() (which validates via Path.resolve() + is_relative_to()) with a bare os.path.join() that performs no path validation. A malicious wheel with traversal entries can write arbitrary files. This issue has been fixed in version 2.27.0.",
  "id": "CVE-2026-47764",
  "modified": "2026-08-07T03:30:22.737541402Z",
  "published": "2026-08-04T17:57:15.756Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/pdm-project/pdm/releases/tag/2.27.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47764.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/pdm-project/pdm/security/advisories/GHSA-78v8-vpjp-cjqh"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-47764"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "pdm: Path traversal in wheel installation via overridden write_to_fs"
}