MAL-2026-13577
Vulnerability from ossf_malicious_packages
-= Per source details. Do not edit below this line.=-
Source: amazon-inspector (338935a6ea459d3f1882101939a348b871a9cf59d49003f5e04eb65afd60c484)
On require()/import, index.js loads./ext.js which selects a platform-specific remote endpoint, downloads an opaque binary via HTTPS from string-split-obfuscated Cloudflare Workers hosts (oob-worker.cf103-070.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev), with a base64-over-DNS-TXT fallback channel across sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. The downloaded bytes are written to a hidden temp file (.cache / dotnet_diag_.exe), chmod 0755, and spawned detached via /bin/sh -c or cmd. Hostname reconstruction from split-string arrays and the DNS covert-channel fallback demonstrate deliberate evasion. The package's stated purpose ('API client wrappers') does not correspond to any of this behavior.
- 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": "_ext.js",
"sha256": "f6693cf04ead0ffc0844db6ab84a3bbc9f5a00046a7f7341837e32ebcd0fdeb9",
"tlsh": "92a1945916fa301507a2e5d8891f881a719ef99332c4d8d8fb4c6a948f96138c3f29fd"
}
],
"package_integrity": [
{
"filename": "dolyame-ui-inputdate-35.8.1.tgz",
"hashes": {
"sha1": "a25c59f82de6f58014544923916614d10c135993",
"sha512_sri": "sha512-o6iBN06XsPjYP+3NDVh20o0A2H4wo267TaBm2DBhQC9Fwo9rGQzeHjAa6vs7L13YrNM1egdP3l1+nylbaUC4hA=="
}
}
]
}
},
"package": {
"ecosystem": "npm",
"name": "dolyame-ui-inputdate"
},
"versions": [
"35.8.1"
]
}
],
"credits": [
{
"contact": [
"inspector-research@amazon.com"
],
"name": "Amazon Inspector",
"type": "FINDER"
}
],
"database_specific": {
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-017045",
"import_time": "2026-08-07T12:51:23.689822118Z",
"modified_time": "2026-08-07T12:35:58Z",
"sha256": "338935a6ea459d3f1882101939a348b871a9cf59d49003f5e04eb65afd60c484",
"source": "amazon-inspector",
"versions": [
"35.8.1"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (338935a6ea459d3f1882101939a348b871a9cf59d49003f5e04eb65afd60c484)\nOn require()/import, index.js loads./_ext.js which selects a platform-specific remote endpoint, downloads an opaque binary via HTTPS from string-split-obfuscated Cloudflare Workers hosts (oob-worker.cf103-070.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev), with a base64-over-DNS-TXT fallback channel across sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. The downloaded bytes are written to a hidden temp file (.cache_\u003crand\u003e / dotnet_diag_\u003crand\u003e.exe), chmod 0755, and spawned detached via /bin/sh -c or cmd. Hostname reconstruction from split-string arrays and the DNS covert-channel fallback demonstrate deliberate evasion. The package\u0027s stated purpose (\u0027API client wrappers\u0027) does not correspond to any of this behavior.\n",
"id": "MAL-2026-13577",
"modified": "2026-08-07T12:35:58Z",
"published": "2026-08-07T12:35:58Z",
"references": [
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/dolyame-ui-inputdate/v/35.8.1"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in dolyame-ui-inputdate (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.