MAL-2026-14227

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bazelisk/MAL-2026-14227.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-14227
Published
2026-08-19T03:41:01Z
Modified
2026-08-19T04:00:18.257213145Z
Summary
Malicious code in bazelisk (npm)
Details

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

Source: amazon-inspector (d4bcbd35130e716d1a2940c91b6691d41b9655fdc8587404af37bc6e5a7f1370)

This npm package uses the name bazelisk, colliding with Google's bazelbuild/bazelisk project (referenced in the tarball's source.txt), and self-labels as a 'Security research canary'. Its postinstall script collects the installer's hostname, platform, arch, Node version, package name, and npm lifecycle event and POSTs that JSON payload to https://grqx3qve.instances.poc.jchunt.top/bazelisk at npm install time. The destination host is unrelated to the real bazelisk publisher. Installer host identifiers and environment fingerprint leave the machine automatically on install, matching a dependency-confusion beacon pattern.

Database specific 
{
    "malicious-packages-origins": [
        {
            "import_time": "2026-08-19T03:49:30.513577353Z",
            "sha256": "d4bcbd35130e716d1a2940c91b6691d41b9655fdc8587404af37bc6e5a7f1370",
            "modified_time": "2026-08-19T03:41:01Z",
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-018327",
            "versions": [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / bazelisk

Package

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

Affected ranges

Affected versions

1.*
1.0.0

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bazelisk/MAL-2026-14227.json"
indicators 
{
    "evidence_files": [
        {
            "sha256": "bf4ae2f80a0450cdf22cadd1f7fdf95041333c195298ee476f77526f7b3ecf56",
            "tlsh": "d80123c1d2b55a3517f8528128f0af0693bbf223370660b67dc404e92fcd0f500311ad",
            "path": "postinstall.js"
        }
    ],
    "package_integrity": [
        {
            "filename": "bazelisk-1.0.0.tgz",
            "hashes": {
                "sha512_sri": "sha512-Ik33La4hOPAvVGYDA6AWSXbUSZdu1QFfvvAhFmJd3rdIpxIhdkeMRvLpNn2iFNzpKO9k2fKP+WtktovUUSwC1Q==",
                "sha1": "fc68b6751dde07007a05fc18697b16c00e273822"
            }
        }
    ]
}
cwes 
[
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    }
]