mal-2026-2759
Vulnerability from ossf_malicious_packages
Published
2026-04-16 09:56
Modified
2026-04-23 20:50
Summary
Malicious code in express-auth-basic (npm)
Details

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

Source: amazon-inspector (1e643f12d60a16d07664d45cf59400356a38f8bb5463f358e1e86e217b88fab5)

The package express-auth-basic was found to contain malicious code.

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

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "express-auth-basic",
        "purl": "pkg:npm/express-auth-basic"
      },
      "versions": [
        "1.2.3"
      ]
    }
  ],
  "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-2026-01943",
        "import_time": "2026-04-16T15:39:01.418077806Z",
        "modified_time": "2026-04-16T09:56:04Z",
        "sha256": "d9816bd322adc64858055f576e3d66a1018b9cf74cc389169d87154c5ed7c72b",
        "source": "reversing-labs",
        "versions": [
          "1.2.3"
        ]
      },
      {
        "import_time": "2026-04-23T20:49:15.456986773Z",
        "modified_time": "2026-04-23T20:43:56Z",
        "sha256": "1e643f12d60a16d07664d45cf59400356a38f8bb5463f358e1e86e217b88fab5",
        "source": "amazon-inspector",
        "versions": [
          "1.2.3"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (1e643f12d60a16d07664d45cf59400356a38f8bb5463f358e1e86e217b88fab5)\nThe package express-auth-basic was found to contain malicious code.\n",
  "id": "MAL-2026-2759",
  "modified": "2026-04-23T20:50:50Z",
  "published": "2026-04-16T09:56:04Z",
  "schema_version": "1.7.4",
  "summary": "Malicious code in express-auth-basic (npm)"
}


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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.
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  • 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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