MAL-2026-16343

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/siriusbeyond/MAL-2026-16343.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-16343
Published
2026-09-21T03:29:11Z
Modified
2026-09-21T04:00:07Z
Summary
Malicious code in siriusbeyond (npm)
Details

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

Source: amazon-inspector (6ce19ca17a48cf79dd094940533d1bff88413d44c945948d0041da15a5b61779)

package.json wires callback.js to both the preinstall and postinstall lifecycle hooks, so npm install siriusbeyond executes it automatically. callback.js collects hostname, username, platform, cwd, home directory, uid/gid/pid, network interface details, CI/cloud environment indicators, and a list of process.env variable names matching approximately 35 credential-shaped regexes (token, secret, key, password, aws, azure, gcp, npm, git, ssh, jwt, database, stripe, slack, discord, webhook, etc.), together with existence checks for.env,.npmrc, credentials, and secrets.json in the working directory. The collected payload is POSTed to api.telegram.org using a hardcoded bot token and chat id (chat 1064260758). A secondary channel base64-encodes a JSON blob of host, user, and CI fields and issues a dns.resolve() against <base64>.dc-callback.example.com, providing a DNS-tunnel exfil path when outbound HTTPS is blocked. Even though variable values are not sent, the disclosed variable names and credential-file inventory identify which secrets the installer holds and enable targeted follow-on attack.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-020220",
            "import_time": "2026-09-21T03:46:37.071317371Z",
            "modified_time": "2026-09-21T03:29:11Z",
            "sha256": "6ce19ca17a48cf79dd094940533d1bff88413d44c945948d0041da15a5b61779",
            "source": "amazon-inspector",
            "versions": [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / siriusbeyond

Package

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

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": "callback.js",
            "sha256": "ae39c187820502961774874f3376f91f238a1d8027c6a1ca7b1fb9b641f7a683",
            "tlsh": "90d1d6da21ab991115e162d6590e6c036849e0073f0db5e93e2c93a19fc9d3c93b37fb"
        }
    ],
    "package_integrity": [
        {
            "filename": "siriusbeyond-1.0.0.tgz",
            "hashes": {
                "sha1": "cc0fe071f774e570f38924555fdcf2b0a681d9f4",
                "sha512_sri": "sha512-eLw2B2AkWHbtLmWWzCqJ8HAsTcdgkHakTZNrd1ddWyVfjBWoBZr3SSYhw3lkGcoZSJw41MFDKun60docGlmPtQ=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/siriusbeyond/MAL-2026-16343.json"