MAL-2026-11915

Import Source

https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@servicetitan/restrict-imports/MAL-2026-11915.json

JSON Data

https://api.osv.dev/v1/vulns/MAL-2026-11915

Aliases

GHSA-4w5p-f3fm-8wp6

Published

2026-08-04T15:25:38Z

Modified

2026-08-05T06:35:35.028419615Z

Summary

Malicious code in @servicetitan/restrict-imports (npm)

Details

npm/@servicetitan/restrict-imports is affected by the large-scale, self-propagating npm supply-chain worm of 2026-08-04 (the "Shai-Hulud: Here We Go Again" wave) — the same campaign that began with the compromise of the keyv and cacheable maintainer account. The listed version(s) were trojanized and republished by the worm after it reached an npm publish token belonging to a maintainer in this namespace; the payload enumerates every package a stolen token controls and republishes each with the same hook, so many packages under this scope were poisoned in the same short window. Every poisoned release adds a preinstall hook ("preinstall": "node setup.mjs") that runs on a bare npm install, before any project code. setup.mjs downloads a standalone Bun runtime and runs a byte-identical, heavily obfuscated ~728 KB second-stage credential stealer (shipped as MathSymbol.js / mathinit.js). It harvests GitHub, npm, AWS, GCP, Azure, HashiCorp Vault and Kubernetes credentials plus generic secrets and private keys (TruffleHog-style sweep), reads CI/CD secrets and identifies build runners, then republishes further packages the stolen token can reach. Rather than a fixed command-and-control host, it exfiltrates stolen findings to attacker-created GitHub repositories (descriptions reading "Shai-Hulud: Here We Go Again") and over DNS. Treat any environment that installed an affected version (with install scripts enabled) as compromised: rotate and revoke all reachable credentials (npm and GitHub tokens, cloud keys, Vault/Kubernetes secrets, and CI org/repo secrets). Part of the August 2026 npm worm that poisoned 400+ packages across many organizations.

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

Source: amazon-inspector (6bedcce6f7bb25c747e0221b6fce0078b2085651760972dc5321b6fdb5521a63)

The package declares scripts.preinstall = 'node setup.mjs'. setup.mjs uses a local bun if present, otherwise downloads a Bun runtime archive (bun-v1.3.13) from github.com/oven-sh/bun/releases/download/ and then invokes it via execFileSync(bun, ['math_init.js']) at npm install time. The invoked file math_init.js is a 727KB single-line script with a // @bun @bun-cjs header, a string-array rotation routine (WV8StW), a large numeric/string constant array (n7gIxM), hex-mangled identifiers, and an alphabet-substitution decoder (hc1jfK9) — a heavily obfuscated payload with no readable source. The package's stated purpose is a webpack import-restriction plugin, which has no need to fetch and execute an alternate language runtime against a bundled obfuscated blob. This is an alternate-runtime dropper pattern: the Node-based preinstall hook stages a second runtime and hands it opaque bundled code to execute on every installer host, bypassing Node-only static inspection of the executed logic. The @servicetitan npm scope is a known vendor scope; a release shape of preinstall → fetch Bun → run obfuscated blob is inconsistent with legitimate maintainer publishing for an import-restriction plugin and is consistent with a scope/account compromise dropping attacker-controlled code into downstream installs.

Source: ghsa-malware (fc7f6d926883e230f328ce18f8b07fdc99a48658b294aab41eb006abec281d9b)

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

{
    "iocs": {
        "files": [
            {
                "paths": [
                    "setup.mjs"
                ],
                "note": "Stage 1 loader added to the package tarball and run via the preinstall script 'node setup.mjs'. Downloads a standalone Bun runtime and executes the second stage under it.",
                "source": "PACKAGE_ARCHIVE"
            },
            {
                "paths": [
                    "Math_Symbol.js",
                    "math_init.js"
                ],
                "note": "Stage 2 payload: byte-identical, heavily obfuscated ~728 KB Bun-bundle credential stealer, shipped in the tarball as Math_Symbol.js and executed at runtime as math_init.js.",
                "source": "PACKAGE_ARCHIVE"
            }
        ]
    },
    "malicious-packages-origins": [
        {
            "id": "GHSA-4w5p-f3fm-8wp6",
            "import_time": "2026-08-05T00:10:17.894285146Z",
            "sha256": "fc7f6d926883e230f328ce18f8b07fdc99a48658b294aab41eb006abec281d9b",
            "modified_time": "2026-08-04T16:42:01Z",
            "versions": [
                "38.1.7",
                "38.1.6",
                "38.1.5",
                "38.1.4",
                "38.1.3",
                "38.1.2",
                "38.1.1"
            ],
            "source": "ghsa-malware"
        },
        {
            "versions": [
                "38.1.1"
            ],
            "import_time": "2026-08-05T03:12:05.304378905Z",
            "sha256": "b455543b9f848df9f717f1a74a84878923a6ea7f17e28c36162903ed4687511c",
            "modified_time": "2026-08-05T02:53:13Z",
            "id": "IN-MAL-2026-011971",
            "source": "amazon-inspector"
        },
        {
            "id": "IN-MAL-2026-012522",
            "import_time": "2026-08-05T04:38:20.518548555Z",
            "sha256": "09d2c36c59d48870ce5e22a7df23b7d95e485236dc000778b70f13052d121c48",
            "modified_time": "2026-08-05T04:12:05Z",
            "versions": [
                "38.1.6"
            ],
            "source": "amazon-inspector"
        },
        {
            "versions": [
                "38.1.7"
            ],
            "import_time": "2026-08-05T04:38:14.229363666Z",
            "sha256": "4a17acdd37db13e0399314171ed5092002e1e56ea75eaaacd76c91dd5bf755ba",
            "modified_time": "2026-08-05T04:04:30Z",
            "id": "IN-MAL-2026-012472",
            "source": "amazon-inspector"
        },
        {
            "id": "IN-MAL-2026-012598",
            "import_time": "2026-08-05T04:38:30.151925103Z",
            "sha256": "6bedcce6f7bb25c747e0221b6fce0078b2085651760972dc5321b6fdb5521a63",
            "modified_time": "2026-08-05T04:22:40Z",
            "versions": [
                "38.1.5"
            ],
            "source": "amazon-inspector"
        },
        {
            "versions": [
                "38.1.3"
            ],
            "import_time": "2026-08-05T04:37:59.333408571Z",
            "sha256": "6ecf7aebf7e7677b93bd67ecd7c76a6267e5e7bb5a116ffaa60e5fccdedb9b93",
            "modified_time": "2026-08-05T03:45:41Z",
            "id": "IN-MAL-2026-012340",
            "source": "amazon-inspector"
        },
        {
            "id": "IN-MAL-2026-012106",
            "import_time": "2026-08-05T04:37:31.068507452Z",
            "sha256": "f5e24eede56f81a94723d9a97265be6cc26673437b71efcf5a47a83428240bc5",
            "modified_time": "2026-08-05T03:12:28Z",
            "versions": [
                "38.1.4"
            ],
            "source": "amazon-inspector"
        },
        {
            "id": "IN-MAL-2026-012804",
            "import_time": "2026-08-05T06:00:06.4354862Z",
            "sha256": "ac5ffd5d1e162b7d00027d2c4aa3a5dbce6bf1e7c161ab37062047aa42f60ea1",
            "modified_time": "2026-08-05T04:51:30Z",
            "versions": [
                "38.1.2"
            ],
            "source": "amazon-inspector"
        }
    ]
}

References

Credits

- Aikido Security - FINDER
- - https://www.aikido.dev
- Amazon Inspector - FINDER
- - inspector-research@amazon.com
- SafeDep - FINDER
- - https://safedep.io
- Socket Threat Research Team - FINDER
- - https://socket.dev

Affected packages

npm / @servicetitan/restrict-imports

Package

Name: @servicetitan/restrict-imports; View open source insights on deps.dev
Purl: pkg:npm/%40servicetitan/restrict-imports

Affected ranges

Affected versions

38.*

38.1.1

38.1.2

38.1.3

38.1.4

38.1.5

38.1.6

38.1.7

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"
    },
    {
        "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"
    },
    {
        "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

{
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-3FZvedME9QY1iQqG6Mu6L5d8DXqNsJJXGkJQeRmzrGxbOvaRRpB/BPSg9a3nd4CYXaEl3JcJNLg/Jh52k1qGgg==",
                "sha1": "9716ad91264109795739c3afa01ea8c8dd4b57d4"
            },
            "filename": "restrict-imports-38.1.1.tgz"
        }
    ],
    "evidence_files": [
        {
            "path": "setup.mjs",
            "sha256": "fd3ca4007b225fdf8de7af4345a19179d5efa8c4bb9205f88cda806e5684b1eb",
            "tlsh": "9a32640912f63210736765e6f54fa0e8f237094b2498dd47795cb188ef49c2ce9e25be"
        },
        {
            "path": "math_init.js",
            "sha256": "9fc2570b7cef51c1b8df116d144d11ff4096357be7d2c4c6367cfc2509cf1bcc",
            "tlsh": "59f493746ec2786982736b5f2199e372e2652e11c27e73fb57e0e432a54c22c30eb51d"
        },
        {
            "path": "package.json",
            "sha256": "f4c073533dba188cc7fd91aa11fd03afe0818a7d140827e14a8a68a3e02d86b7",
            "tlsh": "c1f0ac65c874edb322ec61e10c3b0062aa328c8b4d2c7d0927c7512c4b4c16b41bf6df"
        }
    ]
}

source

"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@servicetitan/restrict-imports/MAL-2026-11915.json"