MAL-2026-16286

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/test8999-auth/MAL-2026-16286.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-16286
Aliases
  • GHSA-25wf-vfrc-2r82
Published
2026-09-18T15:35:40Z
Modified
2026-09-18T20:45:06Z
Summary
Malicious code in test8999-auth (npm)
Details

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

Source: amazon-inspector (6edad84dcdfc0fbb2164a86dd74f831f3da2bc940794e1f157f9de2d159f7545)

package.json declares a preinstall hook that runs index.js on npm install. index.js requires child_process, os, http, and https, then collects host identity data — os.hostname(), os.platform(), os.arch(), os.release(), os.cpus(), and shell output from whoami, id, pwd, and uname -a — and POSTs the resulting JSON over plain HTTP to a hardcoded Burp Collaborator subdomain at http://zore2dnpm2wdqivokhty823ylprjf93y.oastify.com. The collection and exfiltration fire automatically at install time with no user interaction. package.json also declares the package as its own dependency (test8999-auth: ^1.0.1), and the generic testNNNN naming plus OOB collaborator destination are consistent with a dependency-confusion probe.

Source: ghsa-malware (a29ed38686042ed786c0296305881cc95d701e6e57869db03a62a7f047b532c2)

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.

Source: ossf-package-analysis (883ac98e5270a47d8776f617f0d8cef1e987d8ec403a9bfda9329d93b4a0d7fd)

The OpenSSF Package Analysis project identified 'test8999-auth' @ 1.0.1 (npm) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.

  • The package executes one or more commands associated with malicious behavior.

Database specific 
{
    "malicious-packages-origins": [
        {
            "import_time": "2026-09-18T15:39:12.015788605Z",
            "modified_time": "2026-09-18T15:35:40Z",
            "sha256": "883ac98e5270a47d8776f617f0d8cef1e987d8ec403a9bfda9329d93b4a0d7fd",
            "source": "ossf-package-analysis",
            "versions": [
                "1.0.1"
            ]
        },
        {
            "id": "GHSA-25wf-vfrc-2r82",
            "import_time": "2026-09-18T16:27:49.903585534Z",
            "modified_time": "2026-09-18T16:01:51Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "a29ed38686042ed786c0296305881cc95d701e6e57869db03a62a7f047b532c2",
            "source": "ghsa-malware"
        },
        {
            "id": "IN-MAL-2026-020186",
            "import_time": "2026-09-18T20:38:13.661232989Z",
            "modified_time": "2026-09-18T20:24:53Z",
            "sha256": "6edad84dcdfc0fbb2164a86dd74f831f3da2bc940794e1f157f9de2d159f7545",
            "source": "amazon-inspector",
            "versions": [
                "1.0.1"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / test8999-auth

Package

Name
test8999-auth
View open source insights on deps.dev
Purl
pkg:npm/test8999-auth

Affected ranges

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

Affected versions

1.*
1.0.1

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"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "index.js",
            "sha256": "de7de488137b2d0825b4520ebbb8a375692edca1c5ad6bdeba039a908ec8f93d",
            "tlsh": "554133d429f56b7016e7b99a569760077323f2073c00f8e9bd5d83810f8c16ca965be5"
        },
        {
            "path": "package.json",
            "sha256": "fada9e7c3ba85eecfb5d45294dc9ae88189b7c2d535f2d13c4ca5323fc15e056",
            "tlsh": "29c08c208c22dd3362c836e60039400276a18cea00087c0d23c30004c2ca97610ee22a"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/test8999-auth/MAL-2026-16286.json"