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brew-csvkit-cve-2021-42771
Vulnerability from osv_homebrew
Published
2026-08-13 16:41
Modified
2026-09-10 19:02
Summary
Directory Traversal in Babel
Details

Babel.Locale in Babel before 2.9.1 allows attackers to load arbitrary locale .dat files (containing serialized Python objects) via directory traversal, leading to code execution.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "resource": "babel",
        "resource_purl": "pkg:pypi/babel@2.17.0",
        "upstream_fixed_in": "2.9.1"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "csvkit",
        "purl": "pkg:brew/csvkit"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "registry",
    "upstream_evidence": [
      {
        "ecosystem": "PyPI",
        "key": "pkg:pypi/babel@2.17.0",
        "name": "babel",
        "resource": "babel",
        "strategy": "registry",
        "subject_version": "2.17.0"
      }
    ]
  },
  "details": "Babel.Locale in Babel before 2.9.1 allows attackers to load arbitrary locale .dat files (containing serialized Python objects) via directory traversal, leading to code execution.",
  "id": "BREW-csvkit-CVE-2021-42771",
  "modified": "2026-09-10T19:02:48Z",
  "published": "2026-08-13T16:41:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-42771"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python-babel/babel/pull/782"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python-babel/babel/commit/412015ef642bfcc0d8ba8f4d05cdbb6aac98d9b3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-h4m5-qpfp-3mpv"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/babel/PYSEC-2021-421.yaml"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python-babel/babel"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00018.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts/2021/10/msg00040.html"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2021/dsa-5018"
    },
    {
      "type": "WEB",
      "url": "https://www.tenable.com/security/research/tra-2021-14"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Directory Traversal in Babel",
  "upstream": [
    "GHSA-h4m5-qpfp-3mpv",
    "CVE-2021-42771",
    "PYSEC-2021-421"
  ]
}



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