MAL-2026-5917

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/nottuff4/MAL-2026-5917.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-5917
Aliases
  • GHSA-r54f-vpj7-r35g
Published
2026-06-16T19:27:24Z
Modified
2026-07-13T09:17:03Z
Summary
Malicious code in nottuff4 (npm)
Details

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

Source: amazon-inspector (c4f105cfb08cd05b609d2fb92793d7f8cb61d42add7d39e2491e6ba791f550e1)

Package ships a Scramjet-based web proxy (sw.js service worker + bare-mux + WASM rewriter under assets/) plus a static 'Riverbend Tutoring' index.html cover page. index.html lines 60-69 install click/keydown/touchstart listeners that call window.open("https://abdct.com/", "_blank", "noreferrer") on first user interaction. The package is one of ~85 throwaway sibling names auto-published via the bundled auto-publish.sh (imillegal*, ishowfeet*, nottuff*, abuden*, ratelimitsucks*); package.json carries placeholder metadata (name 'package', empty author, no homepage/repo). The asset JavaScript is heavily obfuscated (hex-mangled identifiers throughout assets/*.js), consistent with the upstream Scramjet bundles. main is set to sw.js, which begins with importScripts('./8cfc2/hgshm.js') and uses service-worker globals (self.addEventListener for install/activate/fetch/message); require('nottuff4') from Node throws on the first line, so there is no install-time or import-time code path that executes against a developer who runs npm install nottuff4. The harm — namespace pollution, ToS-evading proxying, and the monetized popup redirect — only materializes when someone unpacks the tarball and serves it as a website to browser visitors. Routing for human review as registry-policy abuse rather than as a supply-chain attack on installers.

Source: ghsa-malware (fa6ac915c6a6c43f039731b0770359f0fdf3eb05ff83e498ae4e27664a98970b)

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": "IN-MAL-2026-006818",
            "import_time": "2026-06-16T19:46:15.143193953Z",
            "modified_time": "2026-06-16T19:27:24Z",
            "sha256": "c4f105cfb08cd05b609d2fb92793d7f8cb61d42add7d39e2491e6ba791f550e1",
            "source": "amazon-inspector",
            "versions": [
                "1.7.7"
            ]
        },
        {
            "id": "GHSA-r54f-vpj7-r35g",
            "import_time": "2026-07-13T07:24:22.629263471Z",
            "modified_time": "2026-07-13T06:27:41Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "fa6ac915c6a6c43f039731b0770359f0fdf3eb05ff83e498ae4e27664a98970b",
            "source": "ghsa-malware"
        },
        {
            "id": "IN-MAL-2026-010078",
            "import_time": "2026-07-13T09:11:11.915638792Z",
            "modified_time": "2026-07-13T09:03:28Z",
            "sha256": "7eef17d10b3ef9158b0eec57d7867044278e33d1113a681cf9890ced59fc9fdc",
            "source": "amazon-inspector",
            "versions": [
                "1.1.7"
            ]
        },
        {
            "id": "IN-MAL-2026-010077",
            "import_time": "2026-07-13T09:11:11.847196654Z",
            "modified_time": "2026-07-13T09:03:21Z",
            "sha256": "e7a04e993982eb3da51cc4630f6be5aeed17896af2056ca88f66347f241c0978",
            "source": "amazon-inspector",
            "versions": [
                "2.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / nottuff4

Package

Name
nottuff4
View open source insights on deps.dev
Purl
pkg:npm/nottuff4

Affected ranges

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

Affected versions

1.*
1.1.7
1.7.7
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"
    },
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "sw.js",
            "sha256": "bb00271669f18ad7ee9e0b7d2db0a8285e4a0cd1431676839878d4eb93619d12",
            "tlsh": "98f1629878f611f1425741acc75b6624303be097398bc896bfbc8f102f8639989e37d9"
        }
    ],
    "package_integrity": [
        {
            "filename": "nottuff4-1.7.7.tgz",
            "hashes": {
                "sha1": "0b5f54aa31601d3ad8ce7cad2fb73028e3bc717c",
                "sha512_sri": "sha512-nrrKCYLkCHKBnBpIq8VRf8xsWrtWcvJw/Cs7kWPK6FHnamAxVorc5ggFtqJY2AgGFy7+7XWBlsm2A8SAXU64Lg=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/nottuff4/MAL-2026-5917.json"