MAL-2026-6120

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@caspianph/storyteller/MAL-2026-6120.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-6120
Published
2026-06-18T16:09:47Z
Modified
2026-06-18T17:16:47Z
Summary
Malicious code in @caspianph/storyteller (npm)
Details

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

Source: amazon-inspector (3bd24daaa395f2e6bfae7c6e6f488a6e114b87e2606ec1bce7dcd4ab6a92f40a)

The package ships setup.cjs containing heavily obfuscated JavaScript with hex-mangled identifiers (_0x32549a, _0x4b2b44, _0x78c349, _0x119ac2) typical of payload-hiding techniques. A file named setup.cjs in an npm package is structurally positioned to be invoked from a lifecycle hook (preinstall/install/postinstall) or required at module load. Legitimate npm packages do not obfuscate their install-time code; obfuscation in this position is overwhelmingly used to hide network beacons, credential reads, or dropper logic from casual inspection.

Database specific 
{
    "malicious-packages-origins":  [
        {
            "id":  "IN-MAL-2026-006986",
            "import_time":  "2026-06-18T17:08:46.248534627Z",
            "modified_time":  "2026-06-18T16:09:47Z",
            "sha256":  "3bd24daaa395f2e6bfae7c6e6f488a6e114b87e2606ec1bce7dcd4ab6a92f40a",
            "source":  "amazon-inspector",
            "versions":  [
                "1.1.13"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / @caspianph/storyteller

Package

Name
@caspianph/storyteller
View open source insights on deps.dev
Purl
pkg:npm/%40caspianph%2Fstoryteller

Affected ranges

Affected versions

1.*
1.1.13

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":  "setup.cjs",
            "sha256":  "6d74592e95cfaa3c8a34d6bf87a7ca5a0cb46d4503f7a0f53880fbc0e55534e2",
            "tlsh":  "8da1835d2be5f491075a46a3312be0dae48b8c26b7168dccac00af787e84375e685d35"
        }
    ],
    "package_integrity":  [
        {
            "filename":  "storyteller-1.1.13.tgz",
            "hashes":  {
                "sha1":  "10c76ebce0ae839094ffa71d324b9fcc8ce47f3f",
                "sha512_sri":  "sha512-qxi4fUIsvUjqtIAZMj9lNGbxEt3jAVH9UO346sNBzYr6XXB2QFBmbcgA+16WFBZrXsEg0Uet+7aofKnUweGlmg=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@caspianph/storyteller/MAL-2026-6120.json"