mal-2026-1635
Vulnerability from ossf_malicious_packages
Published
2026-03-18 12:30
Modified
2026-03-23 05:16
Summary
Malicious code in @polymarket-developers/clob-client (npm)
Details

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

Source: amazon-inspector (345ca83f0d4f9589714459a50b08e9f733a7d56bbb131b029748ad244a2d447b)

The package @polymarket-developers/clob-client was found to contain malicious code.

Credits
Amazon Inspector actran@amazon.com
ReversingLabs www.reversinglabs.com
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@polymarket-developers/clob-client",
        "purl": "pkg:npm/%40polymarket-developers/clob-client"
      },
      "versions": [
        "1.0.7",
        "1.0.8",
        "1.0.9",
        "1.1.0",
        "1.1.1"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "actran@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    },
    {
      "contact": [
        "https://www.reversinglabs.com"
      ],
      "name": "ReversingLabs",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "RLMA-2026-01046",
        "import_time": "2026-03-19T12:18:28.00794066Z",
        "modified_time": "2026-03-18T12:30:32Z",
        "sha256": "e29eb24d991ea515f487658796596a71f9423b67ca0072ff01c288de78b64fbb",
        "source": "reversing-labs",
        "versions": [
          "1.0.7",
          "1.0.8",
          "1.0.9",
          "1.1.0",
          "1.1.1"
        ]
      },
      {
        "import_time": "2026-03-23T05:14:21.716162459Z",
        "modified_time": "2026-03-23T05:11:41Z",
        "sha256": "345ca83f0d4f9589714459a50b08e9f733a7d56bbb131b029748ad244a2d447b",
        "source": "amazon-inspector",
        "versions": [
          "1.0.7",
          "1.0.8",
          "1.0.9",
          "1.1.0",
          "1.1.1"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (345ca83f0d4f9589714459a50b08e9f733a7d56bbb131b029748ad244a2d447b)\nThe package @polymarket-developers/clob-client was found to contain malicious code.\n",
  "id": "MAL-2026-1635",
  "modified": "2026-03-23T05:16:24Z",
  "published": "2026-03-18T12:30:32Z",
  "schema_version": "1.7.4",
  "summary": "Malicious code in @polymarket-developers/clob-client (npm)"
}


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  • 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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  • 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.



Detection rules are retrieved from Rulezet.