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CriticalFix available

CraftBeerPi 4 allows arbitrary code execution

Type: advisorySources: OSV

URL GET parameter "logtime" utilized within the "downloadlog" function from "cbpi/http_endpoints/http_system.py" is subsequently passed to the "os.system" function in "cbpi/controller/system_controller.py" without prior validation allowing arbitrary code execution. This issue affects CraftBeerPi 4: from 4.0.0.58 (commit 563fae9) before 4.4.1.a1 (commit 57572c7).

Products
cbpi4
Affected versions
4.0.5, 4.0.5a13, 4.0.5a14, 4.0.5a15, 4.0.5a16, 4.0.6, 4.0.7, 4.0.7rc1, 4.0.7rc3, 4.1.0, 4.1.0a2, 4.1.0a3, 4.1.0rc1, 4.1.0rc2, 4.1.0rc5, 4.1.0rc8, 4.1.10, 4.1.10rc2, 4.1.11, 4.1.2, 4.1.6, 4.1.7, 4.1.7rc1, 4.2.0, 4.2.0a6, 4.2.0rc1, 4.3.0, 4.3.1, 4.3.2, 4.4.0
Fixed versions
4.4.1.a1
CVEs
CVE-2024-3955
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 18:46 UTC · Revision 1

Source evidence

CraftBeerPi 4 allows arbitrary code execution

core-osv · Original source

Published 2 May 2024, 12:30 UTC

URL GET parameter "logtime" utilized within the "downloadlog" function from "cbpi/http_endpoints/http_system.py" is subsequently passed to the "os.system" function in "cbpi/controller/system_controller.py" without prior validation allowing arbitrary code execution. This issue affects CraftBeerPi 4: from 4.0.0.58 (commit 563fae9) before 4.4.1.a1 (commit 57572c7).

osv:GHSA-4f92-w438-f484

cbpi4

Fixed versions: 4.4.1.a1

Complete source record
{
  "id": "47da5fc53d299c2ba004347086d8b3998cff355cef0b1c55b8fab08bab954b18",
  "url": "https://osv.dev/vulnerability/GHSA-4f92-w438-f484",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CraftBeerPi 4 allows arbitrary code execution",
    "summary": "URL GET parameter \"logtime\" utilized within the \"downloadlog\" function from \"cbpi/http_endpoints/http_system.py\" is subsequently passed to the \"os.system\" function in \"cbpi/controller/system_controller.py\" without prior validation allowing arbitrary code execution. This issue affects CraftBeerPi 4: from 4.0.0.58 (commit 563fae9) before 4.4.1.a1 (commit 57572c7).",
    "evidence": "osv:GHSA-4f92-w438-f484",
    "products": [
      {
        "name": {
          "value": "cbpi4",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.4.1.a1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.0.5",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.0.5a13",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.0.5a14",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.0.5a15",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.0.5a16",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.0.6",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.0.7",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.0.7rc1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.0.7rc3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.0",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.0a2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.0a3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.0rc1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.0rc2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.0rc5",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.0rc8",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.10",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.10rc2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.11",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.6",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.7",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.7rc1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.2.0",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.2.0a6",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.2.0rc1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.3.0",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.3.1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.3.2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.4.0",
            "evidence": "/affected/0/versions"
          }
        ]
      }
    ],
    "severity": "critical",
    "structured": {
      "id": "GHSA-4f92-w438-f484",
      "aliases": [
        "CVE-2024-3955",
        "GHSA-4f92-w438-f484",
        "PYSEC-2026-308"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "4.0.0.58"
                },
                {
                  "fixed": "4.4.1.a1"
                }
              ]
            }
          ],
          "package": {
            "name": "cbpi4",
            "purl": "pkg:pypi/cbpi4",
            "ecosystem": "PyPI"
          },
          "versions": [
            "4.0.5",
            "4.0.5a13",
            "4.0.5a14",
            "4.0.5a15",
            "4.0.5a16",
            "4.0.6",
            "4.0.7",
            "4.0.7rc1",
            "4.0.7rc3",
            "4.1.0",
            "4.1.0a2",
            "4.1.0a3",
            "4.1.0rc1",
            "4.1.0rc2",
            "4.1.0rc5",
            "4.1.0rc8",
            "4.1.10",
            "4.1.10rc2",
            "4.1.11",
            "4.1.2",
            "4.1.6",
            "4.1.7",
            "4.1.7rc1",
            "4.2.0",
            "4.2.0a6",
            "4.2.0rc1",
            "4.3.0",
            "4.3.1",
            "4.3.2",
            "4.4.0"
          ],
          "database_specific": {
            "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/05/GHSA-4f92-w438-f484/GHSA-4f92-w438-f484.json"
          }
        }
      ],
      "modified": "2026-10-27T16:30:06.791472908Z",
      "provider": "osv",
      "references": [
        "https://nvd.nist.gov/vuln/detail/CVE-2024-3955",
        "https://github.com/PiBrewing/craftbeerpi4/issues/132",
        "https://cert.pl/en/posts/2024/05/CVE-2024-3955",
        "https://cert.pl/posts/2024/05/CVE-2024-3955",
        "https://github.com/PiBrewing/craftbeerpi4",
        "https://github.com/pypa/advisory-database/tree/main/vulns/cbpi4/PYSEC-2026-308.yaml",
        "https://pypi.org/project/cbpi4"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-94"
        ],
        "severity": "CRITICAL",
        "github_reviewed": true,
        "nvd_published_at": "2024-05-02T10:15:08Z",
        "github_reviewed_at": "2024-07-05T20:04:18Z"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-3955",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/database_specific/severity"
  },
  "source_id": "core-osv",
  "document_id": 462872,
  "published_at": "2024-05-02T12:30:40+00:00"
}