MAL-2026-16338

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/pf23727/MAL-2026-16338.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-16338
Published
2026-09-21T03:33:14Z
Modified
2026-09-21T04:00:05Z
Summary
Malicious code in pf23727 (npm)
Details

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

Source: amazon-inspector (f83e32460196d036eca65e46845ea4717a9d5e64a5c2360d657d1ae6c92dfe96)

index.js is the package main and runs as an IIFE on require()/import. It reads document.cookie, slices document.body.innerHTML, and issues fetch('/profile', {credentials: 'include'}) to capture an authenticated response, then transmits the concatenated data via navigator.sendBeacon/fetch to a hardcoded collector at https://webhook.site/c4e39647-bfb8-47ef-b6d4-a112aacc6cd1. The destination is an unrelated third-party request-inspection service used as an exfiltration sink; the package has no declared legitimate purpose consistent with reading cookies or authenticated profile content. Behavior is a session-cookie and credentialed-response exfiltration payload rather than a functional library.

Database specific 
{
    "malicious-packages-origins":  [
        {
            "id":  "IN-MAL-2026-020246",
            "import_time":  "2026-09-21T03:46:39.490497277Z",
            "modified_time":  "2026-09-21T03:33:14Z",
            "sha256":  "f83e32460196d036eca65e46845ea4717a9d5e64a5c2360d657d1ae6c92dfe96",
            "source":  "amazon-inspector",
            "versions":  [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / pf23727

Package

Name
pf23727
View open source insights on deps.dev
Purl
pkg:npm/pf23727

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":  "index.js",
            "sha256":  "aa21df7aec3b68355d8379fe1307a1bcca75a9f1f700b1cefe474b6c3ea1a094",
            "tlsh":  "fae02be2b2ba10090711a1cd7067d495f5768041f883d698e2195f208a01066a9474da"
        }
    ],
    "package_integrity":  [
        {
            "filename":  "pf23727-1.0.0.tgz",
            "hashes":  {
                "sha1":  "443afd982961b3cf296840612ae62e080477dbaa",
                "sha512_sri":  "sha512-izkEZD+PH1THiEsywg9OzIFibsgmz9GDBLuZEdMmOjqbBg7FpDMjMETFodP4QOYaIJw3oH6sljVanVQTAUfhrQ=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/pf23727/MAL-2026-16338.json"