MAL-2026-17579

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/with-cte/MAL-2026-17579.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-17579
Published
2026-10-05T08:04:30Z
Modified
2026-10-07T06:30:04Z
Summary
Malicious code in with-cte (npm)
Details

with-cte@1.0.0 contains no functional code: its only behaviour is a preinstall script that runs node index.js on npm install. index.js collects the install directory, the user's home directory, hostname, username and DNS servers, and the full contents of /etc/passwd and /etc/hosts, then sends them as JSON in an HTTPS POST to 187d714jo62z5j5c39hc437myd44sxgm.oastify.com, a Burp Collaborator endpoint. The npm account testneo7755 published it on 2026-10-05 and it was unpublished 56 seconds later; the same account published checkmate-remediation-assistant the same day with the same index.js and a different Collaborator subdomain.

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

Source: amazon-inspector (8eceeb0a05cd8d1a289f1a1006df8acd825d73f341ec1a50e095dc2850b866c8)

The package declares a preinstall lifecycle hook (preinstall: node index.js) that runs automatically on npm install. index.js collects installer host identifiers (os.hostname, os.userInfo, homedir, DNS servers) and reads the contents of /etc/passwd and /etc/hosts, then POSTs the collected data over HTTPS to the Burp Collaborator subdomain 187d714jo62z5j5c39hc437myd44sxgm.oastify.com. The package otherwise contains no library code, has empty author/description metadata, and provides no functionality — the shipped surface is solely the install-time beacon, consistent with a dependency-confusion or internal-name squat probe.

Database specific 
{
    "iocs":  {
        "domains":  [
            "187d714jo62z5j5c39hc437myd44sxgm.oastify.com"
        ],
        "files":  [
            {
                "digests":  {
                    "sha256":  "57f305d98ee36961808b9408ddb98d5d0b15ea1b77e09564860d2b843f8060f9"
                },
                "note":  "preinstall script runs `node index.js`.",
                "paths":  [
                    "package.json"
                ],
                "source":  "PACKAGE_ARCHIVE"
            },
            {
                "digests":  {
                    "sha256":  "9f166ed0f6ddc8c6af3cdecd03dc086fa3921102a3c569d92326718e028f7103"
                },
                "note":  "Executed by the preinstall script of with-cte@1.0.0.",
                "paths":  [
                    "index.js"
                ],
                "source":  "PACKAGE_ARCHIVE"
            }
        ],
        "urls":  [
            "https://187d714jo62z5j5c39hc437myd44sxgm.oastify.com/"
        ]
    },
    "malicious-packages-origins":  [
        {
            "id":  "IN-MAL-2026-021080",
            "import_time":  "2026-10-05T16:22:57.062637671Z",
            "modified_time":  "2026-10-05T16:14:55Z",
            "sha256":  "8eceeb0a05cd8d1a289f1a1006df8acd825d73f341ec1a50e095dc2850b866c8",
            "source":  "amazon-inspector",
            "versions":  [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / with-cte

Package

Name
with-cte
View open source insights on deps.dev
Purl
pkg:npm/with-cte

Affected ranges

Affected versions

1.*
1.0.0

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":  "index.js",
            "sha256":  "9f166ed0f6ddc8c6af3cdecd03dc086fa3921102a3c569d92326718e028f7103",
            "tlsh":  "33411399a2d917330de114c06a0c70852359fa777159a8d076cf4396af869f8b7226f3"
        },
        {
            "path":  "package.json",
            "sha256":  "57f305d98ee36961808b9408ddb98d5d0b15ea1b77e09564860d2b843f8060f9",
            "tlsh":  "4fd0a7384d21553325c516a20c2b944772618f2f04043c0863cb182c91ce77798ff35c"
        }
    ],
    "package_integrity":  [
        {
            "filename":  "with-cte-1.0.0.tgz",
            "hashes":  {
                "sha1":  "c182f210794123466d1568c3d909160e0f34e52e",
                "sha512_sri":  "sha512-Hbkil57Pefuv1lLN9G2JJyU7M1x65dbCqf/uLxDGND4Y+3Ky4m3nZKq61ZInD7Dd+ZMG8cgI2TsOgbtMhFnDpQ=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/with-cte/MAL-2026-17579.json"