MAL-2026-13965

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/nc-verify-127942/MAL-2026-13965.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13965
Published
2026-08-13T20:42:13Z
Modified
2026-08-13T21:00:11Z
Summary
Malicious code in nc-verify-127942 (npm)
Details

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

Source: amazon-inspector (3ea69188e179cd73aa9f200d63e8faceb5d3aae622a8fe2d86bf7ae761b5f1e0)

nc-verify-127942 declares a postinstall lifecycle hook ("postinstall": "node install-cb.js") that runs automatically on npm install. The install-cb.js script issues an HTTPS request and a DNS lookup to a Burp Collaborator subdomain under oastify.com (nc-verify-127942.owoemjgpf2c4qxqet92hexzvym4dsq6skvoa2cr.oastify.com), which confirms code execution on the installer's host and leaks install-side network identifiers (source IP, resolver) to an operator-controlled out-of-band endpoint. The package's own metadata labels it as a proof-of-concept for RCE verification; installing it in a normal developer or CI environment fires the beacon without any user interaction.

Database specific 
{
    "malicious-packages-origins":  [
        {
            "id":  "IN-MAL-2026-017668",
            "import_time":  "2026-08-13T20:49:27.539146485Z",
            "modified_time":  "2026-08-13T20:42:13Z",
            "sha256":  "3ea69188e179cd73aa9f200d63e8faceb5d3aae622a8fe2d86bf7ae761b5f1e0",
            "source":  "amazon-inspector",
            "versions":  [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / nc-verify-127942

Package

Name
nc-verify-127942
View open source insights on deps.dev
Purl
pkg:npm/nc-verify-127942

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"
    }
]
indicators 
{
    "evidence_files":  [
        {
            "path":  "install-cb.js",
            "sha256":  "165f92acd719f30efc0206ff9c3b4144f6108bc02c99ca93c29f12b1a5ff07aa",
            "tlsh":  "8a01d0fe38e3a2106da47aa4c06fc960665fd054a284c486a8cf4120362511d2336c5c"
        },
        {
            "path":  "package.json",
            "sha256":  "40b6cd19bf283cdd7c4c858450cfad67095236ee6621cdda7eb81720ec6d590d",
            "tlsh":  "64e0c2248c2166333dc09ae6092a4556733dbd2e1149b55a22c31504829aab6467e31e"
        }
    ],
    "package_integrity":  [
        {
            "filename":  "nc-verify-127942-1.0.0.tgz",
            "hashes":  {
                "sha1":  "90b5de80ff58e93f1f1e069b83e9d1d62fa0fba7",
                "sha512_sri":  "sha512-0UDcvzS0mCJX3W9lpMOfyMBLoPRlYTO5HLJxAHUMrbDeVoUo1qCwS5ZVHCOzJ3k+2TxhDnvgBzD/pgQ24JiY3A=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/nc-verify-127942/MAL-2026-13965.json"