MAL-2026-14060

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/fastly-vcl-language-client/MAL-2026-14060.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-14060
Published
2026-08-15T15:57:38Z
Modified
2026-08-15T16:15:12Z
Summary
Malicious code in fastly-vcl-language-client (npm)
Details

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

Source: amazon-inspector (2f77be5ce1488e7867223b63fd5c90060e98d6a44325ff2f71bed2b61653d649)

The package declares scripts.preinstall = 'node vishu.js', which runs unconditionally on npm install. vishu.js fetches the installer's public IP via api.ipify.org, reads os.hostname(), and collects CI runner environment variables (CI, GITHUB_ACTIONS, GITHUB_WORKFLOW, GITHUB_RUN_ID, GITHUB_RUN_NUMBER, GITHUB_RUN_ATTEMPT) from process.env, then POSTs/GETs the collected data to a hardcoded https://webhook.site/3c201be4-c16d-4e0c-bf9c-ccc50faa8574 endpoint. It additionally performs a DNS lookup of ping-. to exfiltrate the hostname via DNS out-of-band. The package ships no real functionality — its metadata describes it as a 'dependency test utility package' and its name resembles an internal Fastly tool, consistent with a dependency-confusion / recon probe targeting build systems that resolve internal package names against public npm.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-017959",
            "import_time": "2026-08-15T16:07:56.659295273Z",
            "modified_time": "2026-08-15T15:57:38Z",
            "sha256": "2f77be5ce1488e7867223b63fd5c90060e98d6a44325ff2f71bed2b61653d649",
            "source": "amazon-inspector",
            "versions": [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / fastly-vcl-language-client

Package

Name
fastly-vcl-language-client
View open source insights on deps.dev
Purl
pkg:npm/fastly-vcl-language-client

Affected ranges

Affected versions

1.*
1.0.0

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "vishu.js",
            "sha256": "2010719c38b757732676ea9129b3bd2768e3a7d0f26cfc10e16f1979c277af83",
            "tlsh": "d931224db2f7965004f263c8561b951f715be1533329dd917a9c02521faad3882f3bdc"
        },
        {
            "path": "package.json",
            "sha256": "a32b3d3e4706124090ebcbbf65d6bbfe436ce263965c537baec981031b43455a",
            "tlsh": "dce0c2344a11a63766c44a921e66904666648f6f11447c086bdb152c419f7b788bf31d"
        }
    ],
    "package_integrity": [
        {
            "filename": "fastly-vcl-language-client-1.0.0.tgz",
            "hashes": {
                "sha1": "accc0ae35477a4f8bef3a35b4cf1468e05d45a44",
                "sha512_sri": "sha512-vcjtIfaHVxbgEyFATqt5JojiT4SSCHBv6cJn2Pgzy/UgdUSX+DQTYWn7EqBxEVBh4CI4JcUYvi60u7Tjpq1T7g=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/fastly-vcl-language-client/MAL-2026-14060.json"