MAL-2026-16153

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/web-main/MAL-2026-16153.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-16153
Published
2026-09-14T16:42:39Z
Modified
2026-09-14T17:30:06Z
Summary
Malicious code in web-main (npm)
Details

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

Source: amazon-inspector (61680a5d53758bc9eb99b1cd2566e6e19139d09fee10a0096a5e72bb0953a5b2)

package.json declares preinstall: node index.js, causing index.js to execute automatically on npm install. The script collects os.hostname(), os.userInfo() (username/uid/gid/shell), platform, arch, homedir, and the stdout of whoami, id, and pwd via child_process.exec, then POSTs the aggregated JSON to a hardcoded endpoint at https://smi54v4uvb9q7ve5t6fnyro16scj0co1.oastify.com/system-info (a Burp Collaborator out-of-band host). No legitimate functionality is present; the package's sole effect on install is host reconnaissance and exfiltration to an attacker-controlled OOB collector.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-020023",
            "import_time": "2026-09-14T17:15:20.390495237Z",
            "modified_time": "2026-09-14T16:42:39Z",
            "sha256": "61680a5d53758bc9eb99b1cd2566e6e19139d09fee10a0096a5e72bb0953a5b2",
            "source": "amazon-inspector",
            "versions": [
                "22.1.2"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / web-main

Package

Name
web-main
View open source insights on deps.dev
Purl
pkg:npm/web-main

Affected ranges

Affected versions

22.*
22.1.2

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": "d35df18d79caf14c25e114745aa01e21569ca00c80cb42f008f41613ba2c40f7",
            "tlsh": "465130c515f659251ba7a8494a0f9402a327e0033509ee55bfcc8740af9937c97f0af6"
        },
        {
            "path": "package.json",
            "sha256": "80cd4d0d2a3ea294a07d692ed116b1e05f55272fddf07ca3004dc0fa663ffb23",
            "tlsh": "69d05e345e216a2329c506d6086ea44662a18f2f4904780997cb183c95de67398ff30d"
        }
    ],
    "package_integrity": [
        {
            "filename": "web-main-22.1.2.tgz",
            "hashes": {
                "sha1": "f22e35d441c60acc213e1b251420ac150309d714",
                "sha512_sri": "sha512-lebglOYs2XS9DoLLgGZG7z0SElaox3Pyst5TBxZg2ntvwZSzRivCp717qy59Zz52a+n2/bb0zhSdZ9/bFWnFoQ=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/web-main/MAL-2026-16153.json"