MAL-2026-10389

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/timmytuffknuckles6/MAL-2026-10389.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-10389
Aliases
  • GHSA-5m8p-jhm5-pm44
Published
2026-07-13T06:27:40Z
Modified
2026-07-14T07:19:17Z
Summary
Malicious code in timmytuffknuckles6 (npm)
Details

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

Source: amazon-inspector (22ef6fa6c2b9f80d6a1f79e532a9d9ea083a1c662bc834d118879ba630842b0c)

This package is not a Node.js library. package.json declares "main": "sw.js", a Service Worker that calls importScripts('./8cfc2/hgshm.js') — an API that does not exist in Node, so require('timmytuffknuckles6') throws immediately and the bundled obfuscated assets never execute on the installer's machine. The tarball contents are a school-unblocker / bare-mux web proxy bundle (index.html, multiple obfuscated assets/*.js files, WASM) wrapped in a Riverbend Tutoring cover page that, when served and visited in a browser, loads third-party scripts and opens popunders to external sites. There are no preinstall/install/postinstall lifecycle scripts, and no top-level Node-reachable code path that runs on install or require. The repository also ships auto-publish.sh, an author-run loop that rewrites package.json.name to timmytuffknuckles1..timmytuffknuckles10 and republishes the same payload under each name, polluting the npm namespace with ten clones. The script is not a lifecycle hook and does not run on install. The heavy obfuscation in assets/*.js is consistent with the Ultraviolet/bare-mux proxy framework these projects use, not with installer-side harm. Routing to human review because the package is registry-misuse (proxy webapp masquerading as an npm library, plus deliberate ten-name namespace squatting) even though it does not attack installers.

Source: ghsa-malware (040a672027041512418b9d898bcf26a02f2fe75f50d918b546a3283c87ffd9ee)

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": [
        {
            "id": "GHSA-5m8p-jhm5-pm44",
            "import_time": "2026-07-13T07:24:22.523870476Z",
            "modified_time": "2026-07-13T06:27:49Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "040a672027041512418b9d898bcf26a02f2fe75f50d918b546a3283c87ffd9ee",
            "source": "ghsa-malware"
        },
        {
            "id": "IN-MAL-2026-010228",
            "import_time": "2026-07-13T10:37:39.514502143Z",
            "modified_time": "2026-07-13T09:25:43Z",
            "sha256": "22ef6fa6c2b9f80d6a1f79e532a9d9ea083a1c662bc834d118879ba630842b0c",
            "source": "amazon-inspector",
            "versions": [
                "1.1.7"
            ]
        },
        {
            "id": "IN-MAL-2026-010440",
            "import_time": "2026-07-14T06:49:55.128435855Z",
            "modified_time": "2026-07-14T05:52:07Z",
            "sha256": "5bcb9f82640720404e043fa3c89f64d1545e0a7be444bb91a4226e713f214bd1",
            "source": "amazon-inspector",
            "versions": [
                "2.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / timmytuffknuckles6

Package

Name
timmytuffknuckles6
View open source insights on deps.dev
Purl
pkg:npm/timmytuffknuckles6

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.1.7
2.*
2.0.0

Database specific

cwes 
[
    {
        "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",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "auto-publish.sh",
            "sha256": "ceba53d331844fef6633a0fc4dba47135a076c0ddb39217cdec26ae16f042a28",
            "tlsh": "8b2102acf6dd48913f7f04fa989b0494330e830f147a2e14708752716b883b99adb4ec"
        },
        {
            "path": "sw.js",
            "sha256": "bb00271669f18ad7ee9e0b7d2db0a8285e4a0cd1431676839878d4eb93619d12",
            "tlsh": "98f1629878f611f1425741acc75b6624303be097398bc896bfbc8f102f8639989e37d9"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/timmytuffknuckles6/MAL-2026-10389.json"