MAL-2026-13528
Vulnerability from ossf_malicious_packages
-= Per source details. Do not edit below this line.=-
Source: amazon-inspector (bcd2fbb910548df40180cd1e71ae6234dddbd8c60b871933d9012bab9f0742bb)
The package's main entry (index.js) requires./_ext at module load. _ext.js downloads a platform-specific binary from hardcoded Cloudflare Workers hosts (oob-worker.cf100-416.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf101-adf.workers.dev) — assembled via string-split/join to defeat static scanners — with a DNS-TXT chunked-download fallback under .dl.wel1.ru (c. for chunk count, . for base64 payload chunks). The fetched bytes are written to /var/tmp/.cache_ on POSIX or %TEMP%\dotnet_diag_.exe on Windows, chmod 0755, and spawned detached via /bin/sh -c or cmd. A stamp file named.analytics_state and the dotnet_diag_ filename disguise are used to blend into normal system activity. Any require()/import of the package triggers download-and-execute of opaque attacker-controlled code on the installer's machine.
- 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": "7d120bd6af322356bfd075f029d297fd34f36a160e9806773882247a2f9206d2",
"tlsh": "58a1b69a166a700987b0d7e4c6274416f65be66337c0d5d8fb9c65981f730248372efc"
}
],
"package_integrity": [
{
"filename": "bnpl-blocks-atom-bnpl-faq-item-35.8.2.tgz",
"hashes": {
"sha1": "a10c0bb6510dd7db7793f662abb1323fc1578d43",
"sha512_sri": "sha512-JZ4VUSkTKO2b63Ptf6nBw0rPzMa5oioTbLWFVZ3jnCy8Yy8A0WyYzHRW5jPWcfo5sxqjBC3RsRgC/PmtbYoVQA=="
}
}
]
}
},
"package": {
"ecosystem": "npm",
"name": "bnpl-blocks-atom-bnpl-faq-item"
},
"versions": [
"35.8.2"
]
}
],
"credits": [
{
"contact": [
"inspector-research@amazon.com"
],
"name": "Amazon Inspector",
"type": "FINDER"
}
],
"database_specific": {
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-017023",
"import_time": "2026-08-07T12:51:22.602583377Z",
"modified_time": "2026-08-07T12:32:37Z",
"sha256": "bcd2fbb910548df40180cd1e71ae6234dddbd8c60b871933d9012bab9f0742bb",
"source": "amazon-inspector",
"versions": [
"35.8.2"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (bcd2fbb910548df40180cd1e71ae6234dddbd8c60b871933d9012bab9f0742bb)\nThe package\u0027s main entry (index.js) requires./_ext at module load. _ext.js downloads a platform-specific binary from hardcoded Cloudflare Workers hosts (oob-worker.cf100-416.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf101-adf.workers.dev) \u2014 assembled via string-split/join to defeat static scanners \u2014 with a DNS-TXT chunked-download fallback under *.dl.wel1.ru (c.\u003cdomain\u003e for chunk count, \u003ci\u003e.\u003cdomain\u003e for base64 payload chunks). The fetched bytes are written to /var/tmp/.cache_\u003crnd\u003e on POSIX or %TEMP%\\dotnet_diag_\u003crnd\u003e.exe on Windows, chmod 0755, and spawned detached via /bin/sh -c or cmd. A stamp file named.analytics_state and the dotnet_diag_* filename disguise are used to blend into normal system activity. Any require()/import of the package triggers download-and-execute of opaque attacker-controlled code on the installer\u0027s machine.\n",
"id": "MAL-2026-13528",
"modified": "2026-08-07T12:32:37Z",
"published": "2026-08-07T12:32:37Z",
"references": [
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/bnpl-blocks-atom-bnpl-faq-item/v/35.8.2"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in bnpl-blocks-atom-bnpl-faq-item (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.