mal-2026-4268
Vulnerability from ossf_malicious_packages
Published
2026-05-23 15:58
Modified
2026-05-26 05:55
Summary
Malicious code in asavie-ui (npm)
Details

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

Source: amazon-inspector (bf12a913426dee622d500474fe3629c5bb3246e1793e3f210916885c6d0481a9)

callback.js collects host identity information (os.hostname(), os.userInfo()) and transmits it via https.get() to an external endpoint at install/load time. The combination of OS-level identity collection followed by outbound HTTPS in a callback script is consistent with installer reconnaissance/beaconing. The package name and structure (a 99.x.x version of a generic UI-named package) further suggests a non-legitimate publication. No corresponding legitimate functionality (no UI code, no documented purpose) accompanies the data-collection routine.

Source: ossf-package-analysis (b0478f8efd496e7baa22fc9623c2a786f95453a6ad1f0230d8d4eeca0b12f17f)

The OpenSSF Package Analysis project identified 'asavie-ui' @ 99.0.2 (npm) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.
CWE
  • CWE-506 - The product contains code that appears to be malicious in nature.

{
  "affected": [
    {
      "database_specific": {
        "cwes": [
          {
            "cweId": "CWE-506",
            "description": "The product contains code that appears to be malicious in nature.",
            "name": "Embedded Malicious Code"
          }
        ],
        "indicators": {
          "domains": [
            "dep-conf.asavie-ui.scan-093b632c2f89.scan.d88sor2o12pnlnd0i1n08ghufaornbr1i.oast.me",
            "d88sor2o12pnlnd0i1n08ghufaornbr1i.oast.me"
          ],
          "evidence_files": [
            {
              "path": "callback.js",
              "sha256": "149c36c1022a33c9665dd0eaffb44696b5511baf9a9670d46ad3e42cf8fc195e",
              "tlsh": "df2174e913f19338287148d0e789768f1243d399b4a0c6c09c6d93a4ab871b88b56ef8"
            }
          ],
          "package_integrity": [
            {
              "filename": "asavie-ui-99.0.2.tgz",
              "hashes": {
                "sha1": "065fc5d14f0f7209512b2884e61d5781ce12af28",
                "sha512_sri": "sha512-FyqEx1PXD1hxZKMLdf4tS590I2bsDNoKzk8wWwATq23YpRi3KAGkislnT93r2jeqmiqLxvD1qCGMJYALYE2hGA=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "asavie-ui"
      },
      "versions": [
        "99.0.2"
      ]
    }
  ],
  "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": "2026-05-23T18:26:18.476810273Z",
        "modified_time": "2026-05-23T18:08:30Z",
        "sha256": "b0478f8efd496e7baa22fc9623c2a786f95453a6ad1f0230d8d4eeca0b12f17f",
        "source": "ossf-package-analysis",
        "versions": [
          "99.0.2"
        ]
      },
      {
        "id": "IN-MAL-2026-004353",
        "import_time": "2026-05-26T05:52:26.089199862Z",
        "modified_time": "2026-05-23T15:58:19Z",
        "sha256": "3f6ffe8a3c127532ed603e45f0fe214faa8595fef46edb0a3f7ddb4efe468984",
        "source": "amazon-inspector",
        "versions": [
          "99.0.2"
        ]
      },
      {
        "id": "IN-MAL-2026-004352",
        "import_time": "2026-05-26T05:52:25.913686662Z",
        "modified_time": "2026-05-23T15:58:19Z",
        "sha256": "bf12a913426dee622d500474fe3629c5bb3246e1793e3f210916885c6d0481a9",
        "source": "amazon-inspector",
        "versions": [
          "99.0.2"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (bf12a913426dee622d500474fe3629c5bb3246e1793e3f210916885c6d0481a9)\ncallback.js collects host identity information (os.hostname(), os.userInfo()) and transmits it via https.get() to an external endpoint at install/load time. The combination of OS-level identity collection followed by outbound HTTPS in a callback script is consistent with installer reconnaissance/beaconing. The package name and structure (a 99.x.x version of a generic UI-named package) further suggests a non-legitimate publication. No corresponding legitimate functionality (no UI code, no documented purpose) accompanies the data-collection routine.\n\n## Source: ossf-package-analysis (b0478f8efd496e7baa22fc9623c2a786f95453a6ad1f0230d8d4eeca0b12f17f)\nThe OpenSSF Package Analysis project identified \u0027asavie-ui\u0027 @ 99.0.2 (npm) as malicious.\n\nIt is considered malicious because:\n\n- The package communicates with a domain associated with malicious activity.\n",
  "id": "MAL-2026-4268",
  "modified": "2026-05-26T05:55:01Z",
  "published": "2026-05-23T15:58:19Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/asavie-ui/v/99.0.2"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in asavie-ui (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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  • 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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