MAL-2026-18686

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/cs-core-api-phoenix/MAL-2026-18686.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-18686
Published
2026-10-26T00:00:00Z
Modified
2026-11-05T05:15:04Z
Summary
Malicious code in cs-core-api-phoenix (npm)
Details

cs-core-api-phoenix 5.1.0 is a dependency-confusion package: its postinstall script reads the OS user name and hostname and POSTs them to https://nathanaccacio.com/collect on every install. It targets an internal-looking name and collects data from whoever installs it, without consent.

Database specific 
{
    "iocs": {
        "domains": [
            "nathanaccacio.com"
        ],
        "files": [
            {
                "digests": {
                    "sha256": "310147b5035c63078181fa858763852cf40cde75c8a1439428aab8f10510d898"
                },
                "paths": [
                    "index.js"
                ]
            },
            {
                "digests": {
                    "sha256": "f351b64f04f8cbc6ff1480d76c77b590ee5887b07f5675ec9cca7e1ca856c6ac"
                },
                "paths": [
                    "regex-linter-poc/index.js"
                ]
            }
        ],
        "ips": [],
        "urls": [
            "https://nathanaccacio.com/collect"
        ]
    }
}
References
Credits

Affected packages

npm / cs-core-api-phoenix

Package

Name
cs-core-api-phoenix
View open source insights on deps.dev
Purl
pkg:npm/cs-core-api-phoenix

Affected ranges

Affected versions

5.*
5.1.0

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/cs-core-api-phoenix/MAL-2026-18686.json"