BREW-ANSIBLE@9-CVE-2018-16837 (GHSA-HWRM-63V2-42G4)

Vulnerability from osv_homebrew – Published: 2026-08-13 16:35 – Updated: 2026-09-09 23:41 – Source website
VLAI
Summary
Ansible Leaks Data Passed to ssh-keygen
Details

Ansible "User" module leaks any data which is passed on as a parameter to ssh-keygen. This could lean in undesirable situations such as passphrases credentials passed as a parameter for the ssh-keygen executable. Showing those credentials in clear text form for every user which have access just to the process list.

Severity
7.8 (High)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.5 (High)
CVSS:4.0/AV:L/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",
        "upstream_fixed_in": "2.7.1"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "ansible@9",
        "purl": "pkg:brew/ansible%409"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.13.0_4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "registry",
    "upstream_evidence": [
      {
        "ecosystem": "PyPI",
        "key": "pkg:pypi/ansible@9.13.0",
        "name": "ansible",
        "strategy": "registry",
        "subject_version": "9.13.0"
      },
      {
        "ecosystem": "Debian",
        "key": "Debian/ansible",
        "name": "ansible",
        "strategy": "distro"
      },
      {
        "ecosystem": "PyPI",
        "key": "upstream:pkg:pypi/ansible@9.13.0",
        "name": "ansible",
        "strategy": "distro",
        "subject_version": "9.13.0"
      },
      {
        "ecosystem": "Ubuntu",
        "key": "Ubuntu/ansible",
        "name": "ansible",
        "strategy": "distro"
      }
    ]
  },
  "details": "Ansible \"User\" module leaks any data which is passed on as a parameter to ssh-keygen. This could lean in undesirable situations such as passphrases credentials passed as a parameter for the ssh-keygen executable. Showing those credentials in clear text form for every user which have access just to the process list.",
  "id": "BREW-ansible@9-CVE-2018-16837",
  "modified": "2026-09-09T23:41:06Z",
  "published": "2026-08-13T16:35:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-16837"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ansible/ansible/pull/47487"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ansible/ansible/pull/47486"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ansible/ansible/pull/47445"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ansible/ansible/pull/47436"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ansible/ansible/commit/77928e6c3a2ad878b20312ce5d74d9d7741e0df0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ansible/ansible/commit/b618339c321c387230d3ea523e80ad47af3de5cf"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ansible/ansible/commit/f50cc0b8cb399bb7b7c1ad23b94c9404f0cc6d23"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2019/dsa-4396"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20200227105539/http://www.securityfocus.com/bid/105700"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4072-1"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2018/11/msg00012.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/ansible/PYSEC-2018-44.yaml"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ansible/ansible/blob/c963ef1dfbf73efea5106624eb48b346f01eaefd/changelogs/CHANGELOG-v2.7.rst?plain=1#L138"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ansible/ansible"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16837"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/cve-2018-16837"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:3505"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:3463"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:3462"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:3461"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:3460"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00021.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00077.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00020.html"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Ansible Leaks Data Passed to ssh-keygen",
  "upstream": [
    "GHSA-hwrm-63v2-42g4",
    "CVE-2018-16837",
    "PYSEC-2018-44"
  ]
}



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