MAL-2026-14055

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/harmony-app-toolkit/MAL-2026-14055.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-14055
Published
2026-08-15T14:12:26Z
Modified
2026-08-15T16:15:12.516579646Z
Summary
Malicious code in harmony-app-toolkit (npm)
Details

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

Source: amazon-inspector (84c12fe64417829f19a3ad302001c909c0825b09e1c4a25c957eb8aa96997f49)

The package declares a preinstall lifecycle script (preinstall.js) that reads a hex-encoded command from preinstall.json, decodes it with Buffer.from(hex,'hex'), and passes the result to child_process.exec. The decoded command shells out via curl to https://eousft8gflamm91.m.pipedream.net and POSTs the output of whoami, pwd, hostname, and the contents of /etc/passwd from the installing host. The behavior runs automatically on npm install, uses hex encoding to hide the payload string, and sends installer host identity and a system account file to an attacker-controlled Pipedream endpoint.

Source: ossf-package-analysis (fff7c26e7d15d67157e1b61e4279a0441a9c09fe5c1ef5ad94a8c5ce1b320156)

The OpenSSF Package Analysis project identified 'harmony-app-toolkit' @ 22.0.0 (npm) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.

  • The package executes one or more commands associated with malicious behavior.

Database specific 
{
    "malicious-packages-origins": [
        {
            "import_time": "2026-08-15T14:41:48.071637983Z",
            "sha256": "fff7c26e7d15d67157e1b61e4279a0441a9c09fe5c1ef5ad94a8c5ce1b320156",
            "modified_time": "2026-08-15T14:12:26Z",
            "source": "ossf-package-analysis",
            "versions": [
                "22.0.0"
            ]
        },
        {
            "id": "IN-MAL-2026-017964",
            "import_time": "2026-08-15T16:07:56.951593664Z",
            "sha256": "7a4bf0c3cc6184dfada59b0a31a10acb6afa4784073b71cb19fddd3adf83bd82",
            "versions": [
                "21.0.0"
            ],
            "source": "amazon-inspector",
            "modified_time": "2026-08-15T15:58:25Z"
        },
        {
            "id": "IN-MAL-2026-017963",
            "import_time": "2026-08-15T16:07:56.896176544Z",
            "sha256": "84c12fe64417829f19a3ad302001c909c0825b09e1c4a25c957eb8aa96997f49",
            "modified_time": "2026-08-15T15:58:12Z",
            "source": "amazon-inspector",
            "versions": [
                "22.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / harmony-app-toolkit

Package

Name
harmony-app-toolkit
View open source insights on deps.dev
Purl
pkg:npm/harmony-app-toolkit

Affected ranges

Affected versions

21.*
21.0.0
22.*
22.0.0

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"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/harmony-app-toolkit/MAL-2026-14055.json"
indicators 
{
    "evidence_files": [
        {
            "path": "preinstall.js",
            "tlsh": "edf07d052dfa1237403b20a54a47580b318ad901313edda2bbee5b516fc5c64cca36c9",
            "sha256": "913112caf871d2cd2a23e6becb67ec28401cc294e424d6bf22985c4e1f404bc2"
        }
    ],
    "package_integrity": [
        {
            "filename": "harmony-app-toolkit-21.0.0.tgz",
            "hashes": {
                "sha1": "ec9061295e4d787f67558c50405788f6efcbf4dd",
                "sha512_sri": "sha512-7ehnUS+iRrWiQGjwHkqljDb25NXYX392sRFvW7+5n3elZh6xztbVDa+MdJUV3FrVcO98QL6usqmd1zZyy6lLAQ=="
            }
        }
    ]
}