MAL-2026-4817

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/chainix/MAL-2026-4817.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-4817
Aliases
  • GHSA-mrx8-p3w9-5cfm
Published
2026-05-26T14:34:56Z
Modified
2026-06-01T10:16:40.005629188Z
Summary
Malicious code in chainix (npm)
Details

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

Source: amazon-inspector (93d9609d2eac0c0ff33aed557171138930255798aa649fa648b04814c8cb1908)

Package presents itself as a pino-compatible logger (README badges link to pinojs/pino, exports alias module.exports.pino = middleware) but its exported middleware spawns a detached node lib/initializeCaller.js. That script base64-decodes a hardcoded URL to https://aqua-margit-84.tiiny.site/index.json, fetches the JSON over HTTPS with a base64-obfuscated x-secret-key header, takes the data.cookie field, and executes it via new Function.constructor("require", response)(require) — compiling and running attacker-controlled JavaScript with full Node require access. The fetch retries 5 times. The C2 URL and header name/value are stored as base64 in a fake process object to evade plain-text scanning. tiiny.site is an anonymous static-hosting service; the content at that URL is mutable and attacker-controlled. This is a remote-code-execution dropper that fires when a consumer application invokes the advertised middleware, giving the attacker arbitrary code execution on any host running the application.

Source: ghsa-malware (638ca4910fffe31e7bbaba4da2f69b9df27baff5c1b848415691b5c0aeeec4b4)

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.

Database specific 
{
    "malicious-packages-origins": [
        {
            "versions": [
                "4.4.5"
            ],
            "sha256": "93d9609d2eac0c0ff33aed557171138930255798aa649fa648b04814c8cb1908",
            "source": "amazon-inspector",
            "modified_time": "2026-05-26T14:34:56Z",
            "import_time": "2026-05-26T15:07:42.801096833Z",
            "id": "IN-MAL-2026-004919"
        },
        {
            "sha256": "638ca4910fffe31e7bbaba4da2f69b9df27baff5c1b848415691b5c0aeeec4b4",
            "ranges": [
                {
                    "type": "SEMVER",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "modified_time": "2026-06-01T09:08:05Z",
            "source": "ghsa-malware",
            "import_time": "2026-06-01T10:04:39.157918419Z",
            "id": "GHSA-mrx8-p3w9-5cfm"
        }
    ]
}
References
Credits

Affected packages

npm / chainix

Package

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

Affected ranges

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

Affected versions

4.*
4.4.5

Database specific

indicators 
{
    "package_integrity": [
        {
            "filename": "chainix-4.4.5.tgz",
            "hashes": {
                "sha512_sri": "sha512-DzwOkPWMChQDzEpCc3Z5os7a7NYJG2SrzZyZeGmhTDOJVDfV3t9bGh3G0eqHT5ypw/wd37sNg3bEyZ2seHccPQ==",
                "sha1": "aa3bc8462f06f0afde8515dbcdc24eaa3b35d5c9"
            }
        }
    ],
    "evidence_files": [
        {
            "sha256": "c228e2f20e0dec3cf4e151033fdb13715c2f43975ee5ccf58caf059e104a5266",
            "path": "lib/initializeCaller.js",
            "tlsh": "6911cc8d61fd201c056652e6b62f18126022e4673d86d4e47acc83471fe526fbd536df"
        },
        {
            "sha256": "1f51184c197102444a2c8a23e4a8e54a6479750420512922fcb5d5f795c33911",
            "path": "index.js",
            "tlsh": "0f318545b5f21259126d98c4f6b4a5263cdf9437331b76b1cded93952bce2080032bc7"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/chainix/MAL-2026-4817.json"
cwes 
[
    {
        "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"
    }
]