PYSEC-2026-793

Vulnerability from pysec - Published: 2026-07-06 08:03 - Updated: 2026-07-07 11:30
VLAI
Details

The set_mgmt_parameters function in item.py in cobbler before 2.2.2 allows context-dependent attackers to execute arbitrary code via vectors related to the use of the yaml.load function instead of the yaml.safe_load function, as demonstrated using Puppet.

Impacted products
Name purl
cobbler pkg:pypi/cobbler

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "cobbler",
        "purl": "pkg:pypi/cobbler"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.6.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.6.3-2"
      ]
    }
  ],
  "aliases": [
    "CVE-2011-4953",
    "GHSA-hpj3-5p46-g87w"
  ],
  "details": "The `set_mgmt_parameters` function in item.py in cobbler before 2.2.2 allows context-dependent attackers to execute arbitrary code via vectors related to the use of the `yaml.load` function instead of the `yaml.safe_load function`, as demonstrated using Puppet.",
  "id": "PYSEC-2026-793",
  "modified": "2026-07-07T11:30:29.514920Z",
  "published": "2026-07-06T08:03:25.826275Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2011-4953"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cobbler/cobbler/commit/1b4f9ecf051422eb8512794701900f6199651442"
    },
    {
      "type": "WEB",
      "url": "https://bugs.launchpad.net/ubuntu/oneiric/+source/cobbler/+bug/858883"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.novell.com/show_bug.cgi?id=757062"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/cobbler/cobbler"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00019.html"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/cobbler"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-hpj3-5p46-g87w"
    }
  ],
  "summary": "Cobbler vulnerable to code injection via unsafe YAML loading"
}



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