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GHSA-9QPV-486P-2V4H

Vulnerability from github – Published: 2026-03-12 18:30 – Updated: 2026-06-05 21:31
VLAI
Details

The "tarfile" module would still apply normalization of AREGTYPE (\x00) blocks to DIRTYPE, even while processing a multi-block member such as GNUTYPE_LONGNAME or GNUTYPE_LONGLINK. This could result in a crafted tar archive being misinterpreted by the tarfile module compared to other implementations.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
2.0 (Low)
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
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{
  "affected": [],
  "aliases": [
    "CVE-2025-13462"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-12T18:16:21Z",
    "severity": "LOW"
  },
  "details": "The \"tarfile\" module would still apply normalization of AREGTYPE (\\x00) blocks to DIRTYPE, even while processing a multi-block member such as GNUTYPE_LONGNAME or GNUTYPE_LONGLINK. This could result in a crafted tar archive being misinterpreted by the tarfile module compared to other implementations.",
  "id": "GHSA-9qpv-486p-2v4h",
  "modified": "2026-06-05T21:31:50Z",
  "published": "2026-03-12T18:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-13462"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/issues/141707"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/pull/143934"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/42d754e34c06e57ad6b8e7f92f32af679912d8ab"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/72dde1016493c52abe857fc4a7bf6c40138b4114"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/7ad3093d76a748af55bdb1d2e8aad3638163b017"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/9a23b753552afa28e3a2f4d8863572fc66479406"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/ae99fe3a33b43e303a05f012815cef60b611a9c7"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/d10950739a78f54d0718d88fb5a868374603c084"
    },
    {
      "type": "WEB",
      "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/EOMI5I66ZMKQ2INNFT6T7IAIKUGPZYIE"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}



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