Skip to content
Heist/ feed
Back to feed
Unrated

pkgutil.get_data() does not enforce documented restrictions

Type: advisorySources: OSV

DISPUTED: The project has clarified that the documentation was incorrect, and that pkgutil.get_data() has the same security model as open(). The documentation has been updated to clarify this point. There is no vulnerability in the function if following the intended security model. pkgutil.get_data() did not validate the resource argument as documented, allowing path traversals.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-3479
Confirmed fixed CVEs
Not specified
Updated in this feed
5 Nov 2026, 06:06 UTC · Revision 1

Source evidence

pkgutil.get_data() does not enforce documented restrictions

core-osv · Original source

Published 18 Mar 2026, 18:13 UTC

DISPUTED: The project has clarified that the documentation was incorrect, and that pkgutil.get_data() has the same security model as open(). The documentation has been updated to clarify this point. There is no vulnerability in the function if following the intended security model. pkgutil.get_data() did not validate the resource argument as documented, allowing path traversals.

osv:CVE-2026-3479
Complete source record
{
  "id": "35e337a2cdbe75cbe36e1d1addffefb34bab7bfc00ae672a76e51f7b51905639",
  "url": "https://osv.dev/vulnerability/CVE-2026-3479",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "pkgutil.get_data() does not enforce documented restrictions",
    "summary": "DISPUTED: The project has clarified that the documentation was incorrect, and that pkgutil.get_data() has the same security model as open(). The documentation has been updated to clarify this point. There is no vulnerability in the function if following the intended security model. pkgutil.get_data() did not validate the resource argument as documented, allowing path traversals.",
    "evidence": "osv:CVE-2026-3479",
    "products": [],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-3479",
      "aliases": [
        "CVE-2026-3479",
        "PSF-2026-13"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/python/cpython",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "01104ce1beb3135c2e0c01ec835b994c1f55a1c0"
                },
                {
                  "introduced": "ebf955df7a89ed0c7968f79faec1de49f61ed7cb"
                },
                {
                  "fixed": "23116f998f6789d8c2fbe5ed5b8146854c8c2a4f"
                },
                {
                  "introduced": "f31a89bb901067dd105b00cfa90523cf7ffdbbdd"
                },
                {
                  "fixed": "55ea59e7dc35e1363b203ae4dd9cfc3a0ac0a844"
                },
                {
                  "fixed": "bcdf231946b1da8bdfbab4c05539bb0cc964a1c7"
                },
                {
                  "fixed": "5af6ce3e7b643a30a02d22245c1e3f4a8bc0a1fe"
                },
                {
                  "fixed": "cf59bf76470f3d75ad47d80ffb8ce76b64b5e943"
                },
                {
                  "fixed": "d786d59a8f7196bb630100a869f28ad13436b59c"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.13.13"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "3.14.0"
                      },
                      {
                        "fixed": "3.14.4"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "3.15.0a1"
                      },
                      {
                        "fixed": "3.15.0a8"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "bcdf231946b1da8bdfbab4c05539bb0cc964a1c7"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "5af6ce3e7b643a30a02d22245c1e3f4a8bc0a1fe"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "cf59bf76470f3d75ad47d80ffb8ce76b64b5e943"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "d786d59a8f7196bb630100a869f28ad13436b59c"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v3.15.0a7",
            "v3.15.0a6",
            "v3.13.12",
            "v3.14.3",
            "v3.15.0a5",
            "v3.15.0a4",
            "v3.15.0a3",
            "v3.14.2",
            "v3.13.11",
            "v3.13.10",
            "v3.14.1",
            "v3.15.0a2",
            "v3.15.0a1",
            "v3.13.8",
            "v3.14.0",
            "v3.13.7",
            "v3.13.6",
            "v3.13.5",
            "v3.13.4",
            "v3.14.0b1",
            "v3.13.3",
            "v3.14.0a7",
            "v3.14.0a6",
            "v3.14.0a5",
            "v3.13.2",
            "v3.14.0a4",
            "v3.14.0a3",
            "v3.13.1",
            "v3.14.0a2",
            "v3.14.0a1",
            "v3.13.0",
            "v3.13.0rc3",
            "v3.13.0rc2",
            "v3.13.0rc1",
            "v3.13.0b4",
            "v3.13.0b3",
            "v3.13.0b2",
            "v3.13.0b1",
            "v3.13.0a6",
            "v3.13.0a5",
            "v3.13.0a4",
            "v3.13.0a3",
            "v3.13.0a2",
            "v3.13.0a1",
            "v3.12.0b1",
            "v3.12.0a7",
            "v3.12.0a6",
            "v3.12.0a5",
            "v3.12.0a4",
            "v3.12.0a3",
            "v3.12.0a2",
            "v3.12.0a1",
            "v3.11.0b1",
            "v3.11.0a7",
            "v3.11.0a6",
            "v3.11.0a5",
            "v3.11.0a4",
            "v3.11.0a3",
            "v3.10.0a7",
            "v3.10.0a1",
            "v3.9.0a2",
            "v3.7.0a2",
            "v3.6.0b1",
            "v3.6.0a3",
            "v3.5.0b1",
            "v3.5.0a4",
            "v3.5.0a3",
            "v3.5.0a2",
            "v3.5.0a1",
            "v3.4.0b3",
            "v3.4.0b2",
            "v3.4.0b1",
            "v3.4.0a4",
            "v3.4.0a3",
            "v3.4.0a2",
            "v3.4.0a1",
            "v3.3.0rc3",
            "v3.3.0rc2",
            "v3.3.0rc1",
            "v3.3.0b2",
            "v3.3.0b1",
            "v3.3.0a4",
            "v3.3.0a3",
            "v3.3.0a2",
            "v3.2rc3",
            "v3.2rc2",
            "v3.2rc1",
            "v3.2b2",
            "v3.2b1",
            "v3.2a4",
            "v3.2a3",
            "v3.2a2",
            "v3.2a1",
            "v3.1",
            "v3.1rc2",
            "v3.1rc1",
            "v3.1b1",
            "v3.1a2",
            "v3.1a1",
            "v3.0rc3",
            "v3.0rc2",
            "v3.0rc1",
            "v3.0b3",
            "v3.0b2",
            "v3.0b1",
            "v3.0a5",
            "v3.0a4",
            "v3.0a3",
            "v3.0a2",
            "v3.0a1",
            "v2.4",
            "v2.4c1",
            "v2.4b2",
            "v2.4b1",
            "v2.4a3",
            "v2.4a2",
            "v2.4a1",
            "v2.3c2",
            "v2.3c1",
            "v2.2a3",
            "v2.1",
            "v2.1c2",
            "v2.1c1",
            "v2.1b2",
            "v2.1b1",
            "v2.1a2",
            "v2.1a1",
            "v2.0",
            "v2.0c1",
            "v2.0b2",
            "v2.0b1",
            "v1.6a2",
            "v1.6a1",
            "v1.5.2",
            "v1.5.2c1",
            "v1.5.2b2",
            "v1.5.2b1",
            "v1.5.2a2",
            "v1.5.2a1",
            "v1.5.1",
            "v1.5",
            "v1.5b2",
            "v1.5b1",
            "v1.5a4",
            "v1.5a3",
            "v1.5a2",
            "v1.5a1",
            "v1.4",
            "v1.4b3",
            "v1.4b2",
            "v1.4b1",
            "v1.3",
            "v1.3b1",
            "v1.2",
            "v1.2b4",
            "v1.2b3",
            "v1.2b2",
            "v1.2b1",
            "v1.1.1",
            "v1.1",
            "v1.0.2",
            "v1.0.1",
            "v0.9.9",
            "v0.9.8"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-3479.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:43.003428880Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/3xxx/CVE-2026-3479.json",
        "https://mail.python.org/archives/list/security-announce@python.org/thread/WYLLVQOOCKGK73JM7Z7ZSNOJC4N7BAWY/",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-3479",
        "https://github.com/python/cpython/issues/146121",
        "https://github.com/python/cpython/commit/5af6ce3e7b643a30a02d22245c1e3f4a8bc0a1fe",
        "https://github.com/python/cpython/commit/bcdf231946b1da8bdfbab4c05539bb0cc964a1c7",
        "https://github.com/python/cpython/commit/cf59bf76470f3d75ad47d80ffb8ce76b64b5e943",
        "https://github.com/python/cpython/commit/d786d59a8f7196bb630100a869f28ad13436b59c",
        "https://github.com/python/cpython/pull/146122"
      ],
      "provider_metadata": {
        "isDisputed": true,
        "cna_assigner": "PSF",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/3xxx/CVE-2026-3479.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-3479",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 510957,
  "published_at": "2026-03-18T18:13:42.288+00:00"
}