MAL-2026-5922

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@kalipto/local/MAL-2026-5922.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-5922
Published
2026-06-16T20:07:17Z
Modified
2026-06-16T21:16:47.393533752Z
Summary
Malicious code in @kalipto/local (npm)
Details

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

Source: amazon-inspector (f887073dda96085d83a06048f0010c3e6bef58c035579649a0f1ae6cad66828f)

The package is a purpose-built remote-control agent. On startup (when the bin is invoked with --token, e.g. npx @kalipto/local --token...), index.js opens a plaintext WebSocket connection to ws://api.kaliptosal.dev:3001 and sends a register message containing the host's process.env.HOSTNAME, process.platform, and the supplied token (index.js:27-34). It then listens for messages of type command and executes the attached shell string via child_process.exec with a 30s timeout, returning stdout/stderr back over the same WebSocket (index.js:43-58). The operator of api.kaliptosal.dev therefore obtains arbitrary shell execution on every host that runs the agent, plus host fingerprinting on connect. There is no benign feature advertised by the package that would justify this design — the entire module is the C2 client. Plaintext ws:// also exposes the channel to passive network observers and on-path attackers.

Database specific 
{
    "malicious-packages-origins": [
        {
            "sha256": "7bc21bad10e53c1a470a85fbb0b9d7ca73f5acf6bfe5e0d1096f093636a65c1f",
            "source": "amazon-inspector",
            "modified_time": "2026-06-16T20:07:18Z",
            "versions": [
                "1.0.0"
            ],
            "id": "IN-MAL-2026-006834",
            "import_time": "2026-06-16T21:06:47.639502137Z"
        },
        {
            "sha256": "e564c571c59210776c36ccf981ad7f94cb6975be96ecca9b780b96d7e6896793",
            "source": "amazon-inspector",
            "modified_time": "2026-06-16T20:07:23Z",
            "versions": [
                "1.0.2"
            ],
            "id": "IN-MAL-2026-006836",
            "import_time": "2026-06-16T21:06:47.826496368Z"
        },
        {
            "sha256": "e79377759686435b61cf07c8f77643c83a96cbe9344669d9020e877148a952b9",
            "source": "amazon-inspector",
            "modified_time": "2026-06-16T20:07:17Z",
            "versions": [
                "1.0.3"
            ],
            "id": "IN-MAL-2026-006833",
            "import_time": "2026-06-16T21:06:47.56023077Z"
        },
        {
            "sha256": "f887073dda96085d83a06048f0010c3e6bef58c035579649a0f1ae6cad66828f",
            "source": "amazon-inspector",
            "modified_time": "2026-06-16T20:07:18Z",
            "versions": [
                "1.0.1"
            ],
            "id": "IN-MAL-2026-006835",
            "import_time": "2026-06-16T21:06:47.744694468Z"
        }
    ]
}
References
Credits

Affected packages

npm / @kalipto/local

Package

Name
@kalipto/local
View open source insights on deps.dev
Purl
pkg:npm/%40kalipto%2Flocal

Affected ranges

Affected versions

1.*
1.0.0
1.0.1
1.0.2
1.0.3

Database specific

cwes 
[
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    },
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    },
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    },
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@kalipto/local/MAL-2026-5922.json"
indicators 
{
    "evidence_files": [
        {
            "sha256": "f849579db348cd0a556bf3e5400fc0ed689db311ae6f57d707a6035187661cfc",
            "tlsh": "8d31ef0198fc952412fb1859dd47b853342a54132f4cfb1477ec569a5fca5b864b33d8",
            "path": "index.js"
        }
    ],
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-ohH+yJGhVyBl2YJRKaeb+zqg8fO6fX0kshwT1Zhi45amw+z918jTQTLsoIWXqQLRO3szRI+o7rsiT7D/aSqV/g==",
                "sha1": "a239673e2826f8882907717d5a076c71d7c9436c"
            },
            "filename": "local-1.0.0.tgz"
        }
    ]
}