MAL-2026-13569
Vulnerability from ossf_malicious_packages
-= Per source details. Do not edit below this line.=-
Source: amazon-inspector (9ae65f4eadd80905a644647c6f15aee082d428bf5812632a29015eccc924bf1b)
On require()/import of the package, both adapter.js and the advertised main module lib/telemetry.js download an OS-specific binary from obfuscated third-party endpoints (Cloudflare Workers subdomains oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev, with a DNS-TXT chunked fallback via sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru), write it to /var/tmp/.cache or %TEMP%\dotnet_diag_.exe, mark it executable via fs'chmod'+'Sync', and spawn it detached via cp.spawn('/bin/sh', ['-c', filePath + ' &'], {detached:true, stdio:'ignore'}) or cmd equivalent. Hostnames, filesystem API names, and the child_process require string are reassembled at runtime through string concatenation and.join('') to evade static detection. The dropper is duplicated across _adapter.js and lib/telemetry.js so execution occurs even if one path fails. The fetched payload is opaque, unpinned, unverified, and unrelated to the package's stated purpose (Common TypeScript definitions).
- 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": "_adapter.js",
"sha256": "6eeb87029df11bc3956f9a361bb918326cb295a17db8f902073b5083e1574601",
"tlsh": "5ea1b65a16fb30280693f1d4891f8816719af64337c4e9c4fb4c66548fea52883b39fc"
},
{
"path": "lib/telemetry.js",
"sha256": "34c10b27eafcca6f083e88710afcb594ecd89a6be09fef38918957921eace9ee",
"tlsh": "4573304966fb10214263b0685ebb40437635c4072a4eed5dba9c43ec9f8db3896f1fb9"
}
],
"package_integrity": [
{
"filename": "dolyame-ui-flatcorners-35.8.1.tgz",
"hashes": {
"sha1": "08db62b93eb7d07d191e29d38f60a7e0a97fe3e7",
"sha512_sri": "sha512-wdNHasd6Y1pdWsugJBJWwONqj5Wy3qa1eEqMLDZ/vw3QYqVzViQauYXUkk/Ou3BxtKG7q8HG484kv/jBZ8ftSg=="
}
}
]
}
},
"package": {
"ecosystem": "npm",
"name": "dolyame-ui-flatcorners"
},
"versions": [
"35.8.1"
]
}
],
"credits": [
{
"contact": [
"inspector-research@amazon.com"
],
"name": "Amazon Inspector",
"type": "FINDER"
}
],
"database_specific": {
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-017003",
"import_time": "2026-08-07T12:51:21.7689742Z",
"modified_time": "2026-08-07T12:29:35Z",
"sha256": "9ae65f4eadd80905a644647c6f15aee082d428bf5812632a29015eccc924bf1b",
"source": "amazon-inspector",
"versions": [
"35.8.1"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (9ae65f4eadd80905a644647c6f15aee082d428bf5812632a29015eccc924bf1b)\nOn require()/import of the package, both _adapter.js and the advertised main module lib/telemetry.js download an OS-specific binary from obfuscated third-party endpoints (Cloudflare Workers subdomains oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev, with a DNS-TXT chunked fallback via sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru), write it to /var/tmp/.cache_\u003chex\u003e or %TEMP%\\dotnet_diag_\u003chex\u003e.exe, mark it executable via fs[\u0027chmod\u0027+\u0027Sync\u0027](path, 0o755), and spawn it detached via cp.spawn(\u0027/bin/sh\u0027, [\u0027-c\u0027, filePath + \u0027 \u0026\u0027], {detached:true, stdio:\u0027ignore\u0027}) or cmd equivalent. Hostnames, filesystem API names, and the child_process require string are reassembled at runtime through string concatenation and.join(\u0027\u0027) to evade static detection. The dropper is duplicated across _adapter.js and lib/telemetry.js so execution occurs even if one path fails. The fetched payload is opaque, unpinned, unverified, and unrelated to the package\u0027s stated purpose (Common TypeScript definitions).\n",
"id": "MAL-2026-13569",
"modified": "2026-08-07T12:29:35Z",
"published": "2026-08-07T12:29:35Z",
"references": [
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/dolyame-ui-flatcorners/v/35.8.1"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in dolyame-ui-flatcorners (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.