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BREW-PYTHON@3.10-CVE-2026-6357 (GHSA-JP4C-XJXW-MGF9)

Vulnerability from osv_homebrew – Published: 2026-08-13 17:29 – Updated: 2026-09-17 19:01 – Source website
VLAI
Summary
pip Vulnerable to Inclusion of Functionality from Untrusted Control Sphere
Details

pip prior to version 26.1 would run self-update check functionality after installing wheel files which required importing well-known Python modules names. These module imports were intentionally deferred to increase startup time of the pip CLI. The patch changes self-update functionality to run before wheels are installed to prevent newly-installed modules from being imported shortly after the installation of a wheel package. Users should still review package contents prior to installation.

Severity
5.3 (Medium)
CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "resource": "pip",
        "resource_purl": "pkg:pypi/pip@26.2.1",
        "upstream_fixed_in": "26.1"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "python@3.10",
        "purl": "pkg:brew/python%403.10"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.10.0"
            },
            {
              "fixed": "3.10.20_1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "registry",
    "upstream_evidence": [
      {
        "ecosystem": "PyPI",
        "key": "pkg:pypi/pip@26.2.1",
        "name": "pip",
        "resource": "pip",
        "strategy": "registry",
        "subject_version": "26.2.1"
      }
    ]
  },
  "details": "pip prior to version 26.1 would run self-update check functionality after installing wheel files which required importing well-known Python modules names. These module imports were intentionally deferred to increase startup time of the pip CLI. The patch changes self-update functionality to run before wheels are installed to prevent newly-installed modules from being imported shortly after the installation of a wheel package. Users should still review package contents prior to installation.",
  "id": "BREW-python@3.10-CVE-2026-6357",
  "modified": "2026-09-17T19:01:59Z",
  "published": "2026-08-13T17:29:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6357"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/pip/pull/13923"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/pip/commit/b369bfc96cc524e00c267e1693290e6599c36bad"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/pypa/pip"
    },
    {
      "type": "WEB",
      "url": "https://ichard26.github.io/blog/2026/04/whats-new-in-pip-26.1/#security-fixes"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/04/27/7"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "pip Vulnerable to Inclusion of Functionality from Untrusted Control Sphere",
  "upstream": [
    "GHSA-jp4c-xjxw-mgf9",
    "CVE-2026-6357",
    "PYSEC-2026-2876"
  ]
}



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