MAL-2026-13445

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/elephant-tusk-runner/MAL-2026-13445.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13445
Published
2026-08-06T19:20:04Z
Modified
2026-08-06T23:50:12.898338692Z
Summary
Malicious code in elephant-tusk-runner (npm)
Details

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

Source: amazon-inspector (4ddbdcdca1756bee69586881547c9e63f555685a2e5e3daa68a9519987edd37a)

server.js starts an Express + WebSocket server via app.listen(PORT,...) with no host argument, defaulting the bind to 0.0.0.0, with fully open CORS (Access-Control-Allow-Origin: *) and no authentication. A WebSocket route /terminal-stream and HTTP POST /api/v1/workspace-terminal-command each spawn a bash or powershell.exe PTY and pipe network-received bytes directly into ptySession.write(...), giving any peer that can reach port 4201 an interactive shell on the host running the tool. Additional endpoints on the same listener call child_process.exec with attacker-controllable arguments, including git clone --depth=1 ${targetGitUrl}..., composer install && php artisan key:generate, npm install, php "${terminalFile}", and taskkill/kill on arbitrary PIDs, plus a fetch-proxy that forwards arbitrary target URLs. The listener is started by npm start and by the tusk/elephant CLI shipped in the package's bin entries. On any developer or build machine on a shared or reachable network, this exposes a full remote-shell and remote-code-execution surface for the duration the tool runs.

Database specific 
{
    "malicious-packages-origins": [
        {
            "versions": [
                "1.0.1"
            ],
            "id": "IN-MAL-2026-016760",
            "import_time": "2026-08-06T23:25:07.927039821Z",
            "modified_time": "2026-08-06T19:20:04Z",
            "source": "amazon-inspector",
            "sha256": "4ddbdcdca1756bee69586881547c9e63f555685a2e5e3daa68a9519987edd37a"
        },
        {
            "modified_time": "2026-08-06T19:20:12Z",
            "id": "IN-MAL-2026-016761",
            "import_time": "2026-08-06T23:25:07.962380072Z",
            "versions": [
                "1.0.0"
            ],
            "source": "amazon-inspector",
            "sha256": "b5b1cb934c9fc454063b9840e00e71a668fb1a51fe35996cde98a83a375d7159"
        }
    ]
}
References
Credits

Affected packages

npm / elephant-tusk-runner

Package

Name
elephant-tusk-runner
View open source insights on deps.dev
Purl
pkg:npm/elephant-tusk-runner

Affected ranges

Affected versions

1.*
1.0.0
1.0.1

Database specific

cwes 
[
    {
        "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."
    }
]
indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-KQMgt+5DWFoEZD5OmogiWGRHLfuhQagDAKe1Ig7fPxcd+a2DtPTMadkC88W3P5039/OgE0JSDH8kUAR5oknFWw==",
                "sha1": "d6124cc400507ce43330d99c974673e5bd948c0e"
            },
            "filename": "elephant-tusk-runner-1.0.1.tgz"
        }
    ],
    "evidence_files": [
        {
            "path": "server.js",
            "tlsh": "1673f946a56212660bb6a36ddb035805eb26d463f3098158fdacc3142ff2798c1b3fde",
            "sha256": "a54e7620b1e043a199c7ec29f0b59cc4ee58a2a75eb9ae25731ec3d3ab82d3a3"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/elephant-tusk-runner/MAL-2026-13445.json"