mal-2026-3201
Vulnerability from ossf_malicious_packages
Published
2026-04-30 16:53
Modified
2026-04-30 18:38
Summary
Malicious code in lightning (PyPI)
Details

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

Source: kam193 (703ac419d775488be137d7e01517d768da0b5581ab63338fb9523f2289f2b92c)

Versions 2.6.2, 2.6.3 were compromised.

Compromised versions contain injected code that starts automatically during importing the module, downloads (legitimate) JavaScript runtime, and executes included JavaScript infostealer. It collects credentials from multiple sources (e.g. files, process memory, cloud metadata endpoints, CLI commands like gh or gcloud), sensitive cryptocurrency data, shell history files. It also attempts to spread itself using discovered credentials to other repositories and packages.


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

Campaign: 2026-04-compr-lightning

Reasons (based on the campaign):

  • infostealer

  • files-exfiltration

  • exfiltration-ssh-keys

  • exfiltration-crypto

  • exfiltration-credentials

  • compromised-package

Credits

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "lightning"
      },
      "versions": [
        "2.6.2",
        "2.6.3"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "https://github.com/kam193",
        "https://bad-packages.kam193.eu/"
      ],
      "name": "Kamil Ma\u0144kowski (kam193)",
      "type": "ANALYST"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "pypi/2026-04-compr-lightning/lightning",
        "import_time": "2026-04-30T17:01:25.03549765Z",
        "modified_time": "2026-04-30T16:53:41Z",
        "sha256": "703ac419d775488be137d7e01517d768da0b5581ab63338fb9523f2289f2b92c",
        "source": "kam193",
        "versions": [
          "2.6.2",
          "2.6.3"
        ]
      },
      {
        "id": "pypi/2026-04-compr-lightning/lightning",
        "import_time": "2026-04-30T18:35:47.62757048Z",
        "modified_time": "2026-04-30T16:53:41Z",
        "sha256": "21d1958db35f91cdd9e4daf8466ded080429f05ef2f989a858bef41af4d220b1",
        "source": "kam193",
        "versions": [
          "2.6.2",
          "2.6.3"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (703ac419d775488be137d7e01517d768da0b5581ab63338fb9523f2289f2b92c)\nVersions 2.6.2, 2.6.3 were compromised.\n\n\nCompromised versions contain injected code that starts automatically during importing the module, downloads (legitimate) JavaScript runtime, and executes included JavaScript infostealer. It collects credentials from multiple sources (e.g. files, process memory, cloud metadata endpoints, CLI commands like gh or gcloud), sensitive cryptocurrency data, shell history files. It also attempts to spread itself using discovered credentials to other repositories and packages.\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2026-04-compr-lightning\n\n\nReasons (based on the campaign):\n\n\n - infostealer\n\n\n - files-exfiltration\n\n\n - exfiltration-ssh-keys\n\n\n - exfiltration-crypto\n\n\n - exfiltration-credentials\n\n\n - compromised-package\n",
  "id": "MAL-2026-3201",
  "modified": "2026-04-30T18:38:32Z",
  "published": "2026-04-30T16:53:41Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/Lightning-AI/pytorch-lightning/issues/21691"
    },
    {
      "type": "WEB",
      "url": "https://www.aikido.dev/blog/pytorch-lightning-pypi-compromise-mini-shai-hulud"
    },
    {
      "type": "WEB",
      "url": "https://socket.dev/blog/lightning-pypi-package-compromised"
    },
    {
      "type": "WEB",
      "url": "https://bad-packages.kam193.eu/pypi/campaign/2026-04-compr-lightning"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Lightning-AI/pytorch-lightning/security/advisories/GHSA-w37p-236h-pfx3"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in lightning (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

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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.
  • 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.
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