MAL-2026-10099

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/polipoli-pak/MAL-2026-10099.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-10099
Aliases
  • GHSA-9rgw-9wxh-3pp2
Published
2026-07-09T22:52:20Z
Modified
2026-07-10T20:01:56.747374120Z
Summary
Malicious code in polipoli-pak (npm)
Details

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

Source: amazon-inspector (a8693677ff1f1f887c11d3b4f6ad3f1742c7eefd07b6b8cfabd6cfccc32bc48f)

On npm install, postinstall.js runs automatically and performs two unauthorized actions against the installer. First, it POSTs a JSON fingerprint of the installing machine — os.hostname(), os.userInfo().username, platform, arch, node version, cwd, INITCWD, npm user-agent, and the sorted list of every process.env variable name — to a hardcoded webhook.site canary URL (https://webhook.site/a428f027-90c9-45e2-acca-ffbb4ea86044) that the installer never configured. Second, it walks common project locations under INITCWD (index.html, public/index.html, src/index.html, dist/index.html, build/index.html) and rewrites each file via fs.writeFileSync to inject a fixed-position red banner div into the page body. The environment-variable name inventory reveals which credentials are present on the host, and the HTML rewrite silently modifies files the installer owns at install time.

Source: ghsa-malware (ee2266f117d4745534d3257b98734ddfbeb31634bbbc4b3b0de9a2dee97d4e07)

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Database specific 
{
    "malicious-packages-origins": [
        {
            "import_time": "2026-07-09T22:56:36.883954615Z",
            "id": "IN-MAL-2026-009585",
            "sha256": "a8693677ff1f1f887c11d3b4f6ad3f1742c7eefd07b6b8cfabd6cfccc32bc48f",
            "modified_time": "2026-07-09T22:52:20Z",
            "source": "amazon-inspector",
            "versions": [
                "1.0.1"
            ]
        },
        {
            "import_time": "2026-07-09T22:56:37.07679088Z",
            "id": "IN-MAL-2026-009587",
            "sha256": "af550191d3d4cb2984b26cf7a5aba9ae8c003fa781008b7d7821110d4eefa62d",
            "modified_time": "2026-07-09T22:52:35Z",
            "source": "amazon-inspector",
            "versions": [
                "1.0.2"
            ]
        },
        {
            "import_time": "2026-07-10T19:49:16.618709243Z",
            "id": "GHSA-9rgw-9wxh-3pp2",
            "sha256": "ee2266f117d4745534d3257b98734ddfbeb31634bbbc4b3b0de9a2dee97d4e07",
            "modified_time": "2026-07-10T19:12:26Z",
            "source": "ghsa-malware",
            "versions": [
                "1.0.2"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / polipoli-pak

Package

Name
polipoli-pak
View open source insights on deps.dev
Purl
pkg:npm/polipoli-pak

Affected ranges

Affected versions

1.*
1.0.1
1.0.2

Database specific

cwes 
[
    {
        "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",
        "cweId": "CWE-506"
    },
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "postinstall.js",
            "tlsh": "bd71e9820e2442392ab629e053af6546e3b6d1014194f970f85ed0582fd12b4075bfee",
            "sha256": "29514935dcc304a025ea79b7385998bcb040e067da03eeace456985a73125041"
        }
    ],
    "package_integrity": [
        {
            "filename": "polipoli-pak-1.0.2.tgz",
            "hashes": {
                "sha1": "6d422b1d6d5a405abed6076b0ae3f4b25471df9d",
                "sha512_sri": "sha512-rNxmFMVIYrd5sqNavgBJTZe9b9MENi6RuHLS0mOZ2gyiIyQEsDITvzGS/JYzT4uRNzHwHKQInCbCymzwjlL+/g=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/polipoli-pak/MAL-2026-10099.json"