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BREW-BBOT-CVE-2021-3701 (GHSA-WWCH-CMQR-HHRM)

Vulnerability from osv_homebrew – Published: 2026-08-13 16:37 – Updated: 2026-09-09 23:43 – Source website
VLAI
Summary
ansible-runner has default temporary files written to world R/W locations
Details

A flaw was found in ansible-runner where the default temporary files configuration in ansible-2.0.0 are written to world R/W locations. This flaw allows an attacker to pre-create the directory, resulting in reading private information or forcing ansible-runner to write files as the legitimate user in a place they did not expect. The highest threat from this vulnerability is to confidentiality and integrity.

Severity
6.6 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
6.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "resource": "ansible-runner",
        "resource_purl": "pkg:pypi/ansible-runner@2.4.3",
        "upstream_fixed_in": "2.1.0"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "bbot",
        "purl": "pkg:brew/bbot"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "registry",
    "upstream_evidence": [
      {
        "ecosystem": "PyPI",
        "key": "pkg:pypi/ansible-runner@2.4.3",
        "name": "ansible-runner",
        "resource": "ansible-runner",
        "strategy": "registry",
        "subject_version": "2.4.3"
      }
    ]
  },
  "details": "A flaw was found in ansible-runner where the default temporary files configuration in ansible-2.0.0 are written to world R/W locations. This flaw allows an attacker to pre-create the directory, resulting in reading private information or forcing ansible-runner to write files as the legitimate user in a place they did not expect. The highest threat from this vulnerability is to confidentiality and integrity.",
  "id": "BREW-bbot-CVE-2021-3701",
  "modified": "2026-09-09T23:43:32Z",
  "published": "2026-08-13T16:37:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3701"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ansible/ansible-runner/issues/738"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ansible/ansible-runner/pull/742"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ansible/ansible-runner/pull/742/commits"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2021-3701"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1977959"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ansible/ansible-runner"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/ansible-runner/PYSEC-2022-43067.yaml"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "ansible-runner has default temporary files written to world R/W locations",
  "upstream": [
    "GHSA-wwch-cmqr-hhrm",
    "CVE-2021-3701",
    "PYSEC-2022-43067"
  ]
}



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