MAL-2026-6950

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/whs4_nmp/MAL-2026-6950.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-6950
Aliases
  • GHSA-4fw4-5853-rqf8
Published
2026-07-07T16:19:41Z
Modified
2026-07-09T16:32:05.711356031Z
Summary
Malicious code in whs4_nmp (npm)
Details

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

Source: amazon-inspector (53a1fc3c42fcd64070dd50db1ed23a9f238bd10fea9bba087cb605f7419af28c)

The package's postinstall script runs node index.js on install, which invokes reportLoadedFrom to POST installer-side data to a hardcoded Discord webhook (discord.com/api/webhooks/1523336123319849031/...). The transmitted payload includes the absolute filesystem path of the install location (which leaks the user's home directory / username), the Node.js version, and process.platform/process.arch. There is no disclosure, opt-in, or configuration surface — the destination is a fixed author-controlled channel. Package naming (whs4_nmp, internal default whs4_typo) and README framing (typo 발생시 안내합니다) indicate a dependency-confusion / typosquat probe designed to notify the author whenever a mistyped install lands on a real machine, harvesting host identifiers without consent.

Source: ghsa-malware (05f2dab2e1b7ba48a8ac7e59bbaa32e72fe485b6ff9d28041becdde764394a06)

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-4fw4-5853-rqf8",
            "modified_time": "2026-07-07T16:19:41Z",
            "import_time": "2026-07-07T17:01:10.258796193Z",
            "sha256": "05f2dab2e1b7ba48a8ac7e59bbaa32e72fe485b6ff9d28041becdde764394a06",
            "ranges": [
                {
                    "type": "SEMVER",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "source": "ghsa-malware"
        },
        {
            "versions": [
                "1.0.0"
            ],
            "modified_time": "2026-07-09T15:46:05Z",
            "import_time": "2026-07-09T16:20:52.371823662Z",
            "id": "IN-MAL-2026-009222",
            "source": "amazon-inspector",
            "sha256": "2516b77223ed02019f2bbc420dc4e8c293a7339a4f8a1a858b9bf2dc0d54ae52"
        },
        {
            "id": "IN-MAL-2026-009223",
            "modified_time": "2026-07-09T15:46:12Z",
            "import_time": "2026-07-09T16:20:52.433221406Z",
            "sha256": "53a1fc3c42fcd64070dd50db1ed23a9f238bd10fea9bba087cb605f7419af28c",
            "source": "amazon-inspector",
            "versions": [
                "1.0.1"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / whs4_nmp

Package

Name
whs4_nmp
View open source insights on deps.dev
Purl
pkg:npm/whs4_nmp

Affected ranges

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

Affected versions

1.*
1.0.0
1.0.1

Database specific

cwes 
[
    {
        "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"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/whs4_nmp/MAL-2026-6950.json"
indicators 
{
    "evidence_files": [
        {
            "sha256": "79dea206aaf34f84161e1e9ac7e8b7955145077b8c1873a78babe1cf4a2ce02c",
            "path": "index.js",
            "tlsh": "3161518a96f022210ba3f3d4214bd12bbb2941132a4ecd55f64c47b41fce67ce4e52e8"
        }
    ]
}