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Malicious code in internallib_v923 (npm)

Type: advisorySource: OSV1 source record

--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (2d02d4c28dbcb2db331a6da7dba2476e3b7daf4f4d53d51d76d79ad4732d28a4) index.js exports a command() function that shells out via /bin/bash -c to curl a payload from reverse-shell.sh and pipe it to sh, yielding a reverse shell to the hardcoded callback host 10.0.72.151:443. Any consumer requiring the package and invoking the exported API triggers remote-fetched shell execution with full-host control by the operator of the hardcoded callback. The manifest also declares a single dependency internallib_v79 and the sibling check.js invokes require('internallib_v79').command(), indicating the same payload shape is distributed across a package family with dependency-confusion-style naming (internallib_v).

Announced Group revision 1
Original source ↗

MAL-2026-17562

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:MAL-2026-17562

internallib_v923

Source reference: /affected/0/package/name

Affected versions
1.0.3

Source reference: /affected/0/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "package": {
      "name": "internallib_v923",
      "purl": "pkg:npm/internallib_v923",
      "ecosystem": "npm"
    },
    "versions": [
      "1.0.3"
    ],
    "database_specific": {
      "cwes": [
        {
          "name": "Embedded Malicious Code",
          "cweId": "CWE-506",
          "description": "The product contains code that appears to be malicious in nature."
        }
      ],
      "source": "https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/internallib_v923/MAL-2026-17562.json",
      "indicators": {
        "evidence_files": [
          {
            "path": "index.js",
            "tlsh": "bcd022a789a6163abb4822e09c02f5a2a8578c202b2804b0a0804051088285da34b0ee",
            "sha256": "d6d77ace8ee208ea18e1415a9ea9cccbd69bf15bb4c88fc2a032c063cc55b8a0"
          },
          {
            "path": "package.json",
            "tlsh": "1ed05e3059625d7321d5136a2c6a845372a1ce2f5096bc0957cb5d2c41dfab398fd35c",
            "sha256": "d87ba0bb1ceb081196c3d3d01f07551df168f6dffd12b62c6dfea02b0b10ff38"
          }
        ],
        "package_integrity": [
          {
            "hashes": {
              "sha1": "6d4e1b9ed145f4579928c52b3a1b033423616df8",
              "sha512_sri": "sha512-uqFhaGd0J5mp4h7q5xY8YMnbwuCDOmXGBbu9t1Nid602pdzZl7DNljVoQBeJl6EuH9jfg6czBS6tgq/n4hp3mQ=="
            },
            "filename": "internallib_v923-1.0.3.tgz"
          }
        ]
      }
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#83614 · Revision 1
Added to Heist Feed
Publisher date
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