MAL-2026-16082

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@umschool/platform/MAL-2026-16082.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-16082
Published
2026-09-09T14:50:58Z
Modified
2026-09-09T15:32:41Z
Summary
Malicious code in @umschool/platform (npm)
Details

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

Source: amazon-inspector (bcf64895a777467cc94763bfb942be3c04040ca151fc22753ca48ac4aaecd69c)

@umschool/platform@999.0.1 is published to public npm under an internal-looking scope with an implausibly high version number, a resolution shape used to override internal builds. Its postinstall.js runs on npm install and performs a bulk harvest of installer-owned secrets: it reads the Kubernetes service-account token and namespace from /var/run/secrets/kubernetes.io/serviceaccount/, /etc/hosts and /etc/resolv.conf, queries cloud instance metadata services (AWS IMDS at 169.254.169.254 including IAM role credentials, ECS task-role credentials via 169.254.170.2 / AWS_CONTAINER_CREDENTIALS_RELATIVE_URI, Azure IMDS, and Yandex/GCP-compatible metadata), calls https://kubernetes.default.svc/api/v1/secrets with the harvested SA token as Bearer authorization, walks up to 8 parent directories reading.env files, and filters process.env against a credential regex (token|secret|key|pass|cred|auth|aws|jwt|api|stripe|sendgrid|twilio|...). The collected data is base64-encoded and POSTed to the hardcoded external endpoint https://akko.requestcatcher.com/dep-confusion-v2. The package's self-label as a 'Dependency Confusion PoC' does not change the effect: any build or CI environment that resolves this public package leaks its cloud IAM credentials, Kubernetes secrets, and environment secrets to an external host.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-019857",
            "import_time": "2026-09-09T15:17:29.147897674Z",
            "modified_time": "2026-09-09T14:51:14Z",
            "sha256": "0fefea4d6708fdfc40e784e5906d588dcf2e0cd98cb809de55f22aaf44b31ce9",
            "source": "amazon-inspector",
            "versions": [
                "999.0.2"
            ]
        },
        {
            "id": "IN-MAL-2026-019855",
            "import_time": "2026-09-09T15:17:29.044697464Z",
            "modified_time": "2026-09-09T14:50:58Z",
            "sha256": "bcf64895a777467cc94763bfb942be3c04040ca151fc22753ca48ac4aaecd69c",
            "source": "amazon-inspector",
            "versions": [
                "999.0.1"
            ]
        },
        {
            "id": "IN-MAL-2026-019856",
            "import_time": "2026-09-09T15:17:29.083930539Z",
            "modified_time": "2026-09-09T14:51:06Z",
            "sha256": "bf32ebb56edccccf87cabc4f5b811872f541fe79659252092d9d19e431152ec2",
            "source": "amazon-inspector",
            "versions": [
                "999.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / @umschool/platform

Package

Name
@umschool/platform
View open source insights on deps.dev
Purl
pkg:npm/%40umschool/platform

Affected ranges

Affected versions

999.*
999.0.0
999.0.1
999.0.2

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"
    },
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "postinstall.js",
            "sha256": "6338f0bf7620e74ac2955bf281bc99a38b0761a34328ae4f1db3f896cc606371",
            "tlsh": "7da167a420f6942b4eaad565e3affc1a9016f0033881de8cb3fc4e506f8b455a961dd5"
        }
    ],
    "package_integrity": [
        {
            "filename": "platform-999.0.2.tgz",
            "hashes": {
                "sha1": "0bc6394bc2ffc6220938806cfab17d6f3295dcad",
                "sha512_sri": "sha512-8gJ+k6Let+Mz5MAORJgfz6yBxiCo8oClq6SF3NdpIxVHVvaZKOD6TAD857/xbl1U5sAvrYc+GZkYFQIMe/fEZA=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@umschool/platform/MAL-2026-16082.json"