mal-2026-3252
Vulnerability from ossf_malicious_packages
Published
2026-05-03 21:26
Modified
2026-05-03 21:26
Summary
Malicious code in gauth-client (PyPI)
Details

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

Source: kam193 (aea1fab5eb3b9422c65232e53e79eb71ba3436355601cd61e7a7b0177779df4e)

Package impersonates Google and attempts to exfiltrate various credential files. It also setups PTH file for automated start during Python initialization. In the analyzed version, the exfiltration target was set as localhost suggesting it's not the final code.


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

Campaign: 2026-05-gauth-client

Reasons (based on the campaign):

  • exfiltration-credentials

  • impersonation

  • files-exfiltration

Credits

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "gauth-client"
      },
      "versions": [
        "0.1.0"
      ]
    }
  ],
  "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/2026-05-gauth-client/gauth-client",
        "import_time": "2026-05-03T21:47:54.48009955Z",
        "modified_time": "2026-05-03T21:26:25.089879Z",
        "sha256": "aea1fab5eb3b9422c65232e53e79eb71ba3436355601cd61e7a7b0177779df4e",
        "source": "kam193",
        "versions": [
          "0.1.0"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (aea1fab5eb3b9422c65232e53e79eb71ba3436355601cd61e7a7b0177779df4e)\nPackage impersonates Google and attempts to exfiltrate various credential files. It also setups PTH file for automated start during Python initialization. In the analyzed version, the exfiltration target was set as localhost suggesting it\u0027s not the final code.\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2026-05-gauth-client\n\n\nReasons (based on the campaign):\n\n\n - exfiltration-credentials\n\n\n - impersonation\n\n\n - files-exfiltration\n",
  "id": "MAL-2026-3252",
  "modified": "2026-05-03T21:26:25Z",
  "published": "2026-05-03T21:26:25Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/gauth-client"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in gauth-client (PyPI)"
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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