mal-2026-13642
Vulnerability from ossf_malicious_packages
-= Per source details. Do not edit below this line.=-
Source: amazon-inspector (c11dc6f375e9ceaee8f1b8e40db07f49c88e7bc47715759b101d3513399047be)
On require()/import, init.js selects an OS/arch-specific binary and downloads it from a rotating set of Cloudflare Workers hostnames (oob-worker.cf103-070.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf100-416.workers.dev) with a DNS-TXT fallback under sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru. The fetched bytes are written under disguised names (dotnet_diag.exe,.cache_) to /var/tmp or Windows TEMP, chmod'd 0755, and spawned detached via /bin/sh or cmd. A second dropper in lib/telemetry.js (loaded as the main export inside a decoy Sentry-like SDK bundle) base64-decodes downloaded bytes, chmods 0755 via a dynamically constructed property name ("chmod"+"Sync"), and spawns the resulting file detached. Hostnames and dangerous API names are assembled from split string fragments at runtime ("child_"+"process",.join("") over host fragments) to defeat static analysis. No pinning, no hash or signature verification, and the delivered content is opaque and unrelated to any documented package purpose.
- 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": "_init.js",
"sha256": "16d7a68417b747c2ef101a1c4c6bff910dd16915c814b7e724ae43eeb1f5b203",
"tlsh": "a3a1a75a16fa70190793f5d8842f8816719af64336c5e8c8fb4c6a948f97138c3b29fc"
},
{
"path": "lib/telemetry.js",
"sha256": "1602c6437dfe46b5e3e0fa8aaaad2c7da58282a964b6e1dca0f5aec90544e635",
"tlsh": "25733f4966fb10214263b0685ebb40437635c4072a4eed5dba9c43ec9f8db3896f1fb9"
}
],
"package_integrity": [
{
"filename": "sme-rko-finance-front-operations-other-35.8.1.tgz",
"hashes": {
"sha1": "865dc3a593bdbdf91da14e8fb5a18bc727fcf962",
"sha512_sri": "sha512-aMTc3/TSi3FpzxYOt+5C8tvm/38f+8ulp7+MJEzqn2Oyj3UkyvS6KQHWULhqWxxSwgwyJ/zcp7lyB0uK7JScLw=="
}
}
]
}
},
"package": {
"ecosystem": "npm",
"name": "sme-rko-finance-front-operations-other"
},
"versions": [
"35.8.1"
]
}
],
"credits": [
{
"contact": [
"inspector-research@amazon.com"
],
"name": "Amazon Inspector",
"type": "FINDER"
}
],
"database_specific": {
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-017161",
"import_time": "2026-08-08T00:53:07.785853581Z",
"modified_time": "2026-08-08T00:46:39Z",
"sha256": "c11dc6f375e9ceaee8f1b8e40db07f49c88e7bc47715759b101d3513399047be",
"source": "amazon-inspector",
"versions": [
"35.8.1"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (c11dc6f375e9ceaee8f1b8e40db07f49c88e7bc47715759b101d3513399047be)\nOn require()/import, _init.js selects an OS/arch-specific binary and downloads it from a rotating set of Cloudflare Workers hostnames (oob-worker.cf103-070.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf100-416.workers.dev) with a DNS-TXT fallback under sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru. The fetched bytes are written under disguised names (dotnet_diag_*.exe,.cache_*) to /var/tmp or Windows TEMP, chmod\u0027d 0755, and spawned detached via /bin/sh or cmd. A second dropper in lib/telemetry.js (loaded as the main export inside a decoy Sentry-like SDK bundle) base64-decodes downloaded bytes, chmods 0755 via a dynamically constructed property name (\"chmod\"+\"Sync\"), and spawns the resulting file detached. Hostnames and dangerous API names are assembled from split string fragments at runtime (\"child_\"+\"process\",.join(\"\") over host fragments) to defeat static analysis. No pinning, no hash or signature verification, and the delivered content is opaque and unrelated to any documented package purpose.\n",
"id": "MAL-2026-13642",
"modified": "2026-08-08T00:46:39Z",
"published": "2026-08-08T00:46:39Z",
"references": [
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/sme-rko-finance-front-operations-other/v/35.8.1"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in sme-rko-finance-front-operations-other (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.