mal-2025-191619
Vulnerability from ossf_malicious_packages
Published
2025-10-22 12:41
Modified
2025-12-10 18:46
Summary
Malicious code in asynhttp (PyPI)
Details

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

Source: kam193 (058c3bab076ccb770a3ecaefbdb301df88bd935a79f154cdeb329c51c4a1eef5)

Packages silently decrypt content hidden in a dependency and load them as Python extension modules.

In the first wave, those are copies of legitimate aiohttp and aiohappyeyeballs packages. In the second wave, malicious packages created good-looking forks of legitimate rich and pigments packages.


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

Campaign: 2025-10-asynhttp

Reasons (based on the campaign):

  • typosquatting

  • exfiltration-generic

  • obfuscation

  • clones-real-package

  • native-extension


{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "asynhttp",
        "purl": "pkg:pypi/asynhttp"
      },
      "versions": [
        "3.13.1"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "https://github.com/kam193",
        "https://bad-packages.kam193.eu/"
      ],
      "name": "Kamil Ma\u0144kowski (kam193)"
    },
    {
      "contact": [
        "https://github.com/kam193",
        "https://bad-packages.kam193.eu/"
      ],
      "name": "Kamil Ma\u0144kowski (kam193)",
      "type": "ANALYST"
    },
    {
      "contact": [
        "https://www.reversinglabs.com"
      ],
      "name": "ReversingLabs",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "RLMA-2025-05586",
        "import_time": "2025-12-02T09:09:36.062448856Z",
        "modified_time": "2025-12-01T12:54:04Z",
        "sha256": "27f648a30d77874cfffeb97c2052d67485ed66da94f30db8cf52415393a89ca0",
        "source": "reversing-labs",
        "versions": [
          "3.13.1"
        ]
      },
      {
        "id": "pypi/2025-10-asynhttp/asynhttp",
        "import_time": "2025-12-02T22:30:54.954400918Z",
        "modified_time": "2025-10-22T12:41:46.169521Z",
        "sha256": "649f3bd8674eef95a14f9f389db5a8900362ba5f5f18381ffaa885a43395db8a",
        "source": "kam193",
        "versions": [
          "3.13.1"
        ]
      },
      {
        "id": "pypi/2025-10-asynhttp/asynhttp",
        "import_time": "2025-12-02T23:07:17.994367438Z",
        "modified_time": "2025-10-22T12:41:46.169521Z",
        "sha256": "2c5f91525485110943474c187077da4ab6ef21e3209e4d6e7abf1007321cf1cd",
        "source": "kam193",
        "versions": [
          "3.13.1"
        ]
      },
      {
        "id": "pypi/2025-10-asynhttp/asynhttp",
        "import_time": "2025-12-10T18:45:05.206746196Z",
        "modified_time": "2025-10-22T12:41:46.169521Z",
        "sha256": "058c3bab076ccb770a3ecaefbdb301df88bd935a79f154cdeb329c51c4a1eef5",
        "source": "kam193",
        "versions": [
          "3.13.1"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (058c3bab076ccb770a3ecaefbdb301df88bd935a79f154cdeb329c51c4a1eef5)\nPackages silently decrypt content hidden in a dependency and load them as Python extension modules. \n\nIn the first wave, those are copies of legitimate aiohttp and aiohappyeyeballs packages.\nIn the second wave, malicious packages created good-looking forks of legitimate rich and pigments packages.\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2025-10-asynhttp\n\n\nReasons (based on the campaign):\n\n\n - typosquatting\n\n\n - exfiltration-generic\n\n\n - obfuscation\n\n\n - clones-real-package\n\n\n - native-extension\n",
  "id": "MAL-2025-191619",
  "modified": "2025-12-10T18:46:47Z",
  "published": "2025-10-22T12:41:46Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://www.cert.at/en/blog/2025/10/how-typosquatting-tricked-me-a-bit"
    },
    {
      "type": "ARTICLE",
      "url": "https://www.cert.at/en/blog/2025/10/how-typosquatting-tricked-me-a-bit"
    },
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/package/asynhttp"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in asynhttp (PyPI)"
}


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Sightings

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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.
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  • 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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