MAL-2026-5
Vulnerability from ossf_malicious_packages
Published
2026-01-01 18:40
Modified
2026-01-01 18:40
Summary
Malicious code in queryservice-client (PyPI)
Details

-= Per source details. Do not edit below this line.=-

Source: kam193 (92aafbccc7065760e0127931c5150c59561f3b753ab9fe79dbcbdafd1aef97dc)

Dependency confusion PoC that exfiltrates also potentially sensitive environment variables

Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: GENERIC-questionable-pentest

Reasons (based on the campaign):

  • exfiltration-env-variables

  • exfiltration-generic

  • The package overrides the install command in setup.py to execute malicious code during installation.

  • typosquatting

Credits
Kamil Mańkowski (kam193) github.com/kam193 bad-packages.kam193.eu/
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "queryservice-client"
      },
      "versions": [
        "0.1.0",
        "2.3.2"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "https://github.com/kam193",
        "https://bad-packages.kam193.eu/"
      ],
      "name": "Kamil Ma\u0144kowski (kam193)",
      "type": "REPORTER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "pypi/GENERIC-questionable-pentest/queryservice-client",
        "import_time": "2026-01-01T19:06:50.725487435Z",
        "modified_time": "2026-01-01T18:40:28.004237Z",
        "sha256": "92aafbccc7065760e0127931c5150c59561f3b753ab9fe79dbcbdafd1aef97dc",
        "source": "kam193",
        "versions": [
          "0.1.0",
          "2.3.2"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (92aafbccc7065760e0127931c5150c59561f3b753ab9fe79dbcbdafd1aef97dc)\nDependency confusion PoC that exfiltrates also potentially sensitive environment variables\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: GENERIC-questionable-pentest\n\n\nReasons (based on the campaign):\n\n\n - exfiltration-env-variables\n\n\n - exfiltration-generic\n\n\n - The package overrides the install command in setup.py to execute malicious code during installation.\n\n\n - typosquatting\n",
  "id": "MAL-2026-5",
  "modified": "2026-01-01T18:40:28Z",
  "published": "2026-01-01T18:40:28Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/queryservice-client"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in queryservice-client (PyPI)"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.