MAL-2026-13584
Vulnerability from ossf_malicious_packages
-= Per source details. Do not edit below this line.=-
Source: amazon-inspector (c4fa9effd850891eced167c6313a3e722c359890792d59446d9f28f7898bd4a0)
On require of the package's main entry, shim.js and lib/telemetry.js fetch a platform-specific executable from obfuscated Cloudflare workers.dev endpoints (oob-worker.cf100-416.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf102-baf.workers.dev) with a DNS-TXT fallback to sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru, base64-decode the response, write it to /tmp/.cache on Unix or %TEMP%\dotnet_diag_.exe on Windows, chmod 0755, and spawn it detached via cp.spawn("/bin/sh", ["-c", filePath + " &"], {detached:true, stdio:"ignore"}). Host names and dangerous API identifiers are reassembled at runtime via array.join("") and dynamic property access (require("child_" + "process"), fs["chmod" + "Sync"], os"host" + "name") to defeat static inspection. The dropper logic is duplicated between _shim.js and lib/telemetry.js so the payload runs whichever module is loaded, and is wrapped in an 'Analytics SDK' comment block as cover-story framing. Requiring or installing the package results in execution of attacker-controlled native code on the installer's host.
- CWE-506 - The product contains code that appears to be malicious in nature.
{
"affected": [
{
"database_specific": {
"cwes": [
{
"cweId": "CWE-506",
"description": "The product contains code that appears to be malicious in nature.",
"name": "Embedded Malicious Code"
}
],
"indicators": {
"evidence_files": [
{
"path": "_shim.js",
"sha256": "2d7ef21f7dbef13933551c36e61cdad438ce92d04c2bbf6dc46e06f0cc266708",
"tlsh": "faa1b65966fa30180792f1d4851f841a71daf55333c5e8d8fb4c66948f9663883f29ec"
},
{
"path": "lib/telemetry.js",
"sha256": "e540e9c9642b6394fe67d1b7e0c8568dae01014658c12043f4fe429342f15d16",
"tlsh": "bf73304966fb10214263b0685ebb40437635c4072a4eed5dba9c43ec9f8db3896f1fb9"
}
],
"package_integrity": [
{
"filename": "dolyame-ui-inputsecure-35.8.1.tgz",
"hashes": {
"sha1": "031efbfcb4781a7274c5e8bb480ae3d0ec1d6d31",
"sha512_sri": "sha512-lF1REWxJoGZ56Pc+688kVhZV9a0YhnO+EhfL+fSwj6FrqXKWePr7EEZgGhShav/epyrP7KeHLKQf2cGroFP90A=="
}
}
]
}
},
"package": {
"ecosystem": "npm",
"name": "dolyame-ui-inputsecure"
},
"versions": [
"35.8.1"
]
}
],
"credits": [
{
"contact": [
"inspector-research@amazon.com"
],
"name": "Amazon Inspector",
"type": "FINDER"
}
],
"database_specific": {
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-017026",
"import_time": "2026-08-07T12:51:22.777439559Z",
"modified_time": "2026-08-07T12:33:03Z",
"sha256": "c4fa9effd850891eced167c6313a3e722c359890792d59446d9f28f7898bd4a0",
"source": "amazon-inspector",
"versions": [
"35.8.1"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (c4fa9effd850891eced167c6313a3e722c359890792d59446d9f28f7898bd4a0)\nOn require of the package\u0027s main entry, _shim.js and lib/telemetry.js fetch a platform-specific executable from obfuscated Cloudflare workers.dev endpoints (oob-worker.cf100-416.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf102-baf.workers.dev) with a DNS-TXT fallback to sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru, base64-decode the response, write it to /tmp/.cache_\u003chex\u003e on Unix or %TEMP%\\dotnet_diag_\u003chex\u003e.exe on Windows, chmod 0755, and spawn it detached via cp.spawn(\"/bin/sh\", [\"-c\", filePath + \" \u0026\"], {detached:true, stdio:\"ignore\"}). Host names and dangerous API identifiers are reassembled at runtime via array.join(\"\") and dynamic property access (require(\"child_\" + \"process\"), fs[\"chmod\" + \"Sync\"], os[\"host\" + \"name\"]()) to defeat static inspection. The dropper logic is duplicated between _shim.js and lib/telemetry.js so the payload runs whichever module is loaded, and is wrapped in an \u0027Analytics SDK\u0027 comment block as cover-story framing. Requiring or installing the package results in execution of attacker-controlled native code on the installer\u0027s host.\n",
"id": "MAL-2026-13584",
"modified": "2026-08-07T12:33:03Z",
"published": "2026-08-07T12:33:03Z",
"references": [
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/dolyame-ui-inputsecure/v/35.8.1"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in dolyame-ui-inputsecure (npm)"
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.