MAL-2026-4
Vulnerability from ossf_malicious_packages
Published
2026-01-01 17:03
Modified
2026-01-02 21:37
Summary
Malicious code in rules-playground (npm)
Details

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

Source: amazon-inspector (c0cd14651deea0e986dc2d7f9b11494d8c96a074ed9112aaa16076ea19b2b718)

The package rules-playground was found to contain malicious code.

Source: ossf-package-analysis (25f6cc3039b9ea0289071ff13147621de7ac3612f749b115ad9ebba1a681d97e)

The OpenSSF Package Analysis project identified 'rules-playground' @ 0.0.3 (npm) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "rules-playground"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": [
        "0.0.3"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "actran@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    },
    {
      "contact": [
        "https://github.com/ossf/package-analysis",
        "https://openssf.slack.com/channels/package_analysis"
      ],
      "name": "OpenSSF: Package Analysis",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "import_time": "2026-01-01T17:07:11.33956582Z",
        "modified_time": "2026-01-01T17:03:00Z",
        "sha256": "25f6cc3039b9ea0289071ff13147621de7ac3612f749b115ad9ebba1a681d97e",
        "source": "ossf-package-analysis",
        "versions": [
          "0.0.3"
        ]
      },
      {
        "import_time": "2026-01-02T21:35:51.276094608Z",
        "modified_time": "2026-01-02T21:29:26Z",
        "ranges": [
          {
            "events": [
              {
                "introduced": "0"
              }
            ],
            "type": "SEMVER"
          }
        ],
        "sha256": "c0cd14651deea0e986dc2d7f9b11494d8c96a074ed9112aaa16076ea19b2b718",
        "source": "amazon-inspector"
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (c0cd14651deea0e986dc2d7f9b11494d8c96a074ed9112aaa16076ea19b2b718)\nThe package rules-playground was found to contain malicious code.\n\n## Source: ossf-package-analysis (25f6cc3039b9ea0289071ff13147621de7ac3612f749b115ad9ebba1a681d97e)\nThe OpenSSF Package Analysis project identified \u0027rules-playground\u0027 @ 0.0.3 (npm) as malicious.\n\nIt is considered malicious because:\n\n- The package communicates with a domain associated with malicious activity.\n",
  "id": "MAL-2026-4",
  "modified": "2026-01-02T21:37:30Z",
  "published": "2026-01-01T17:03:00Z",
  "schema_version": "1.7.4",
  "summary": "Malicious code in rules-playground (npm)"
}


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Sightings

Author Source Type Date

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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