MAL-2026-16359
Vulnerability from ossf_malicious_packages
-= Per source details. Do not edit below this line.=-
Source: amazon-inspector (1fa27cef146dec157eaf78519d56ff2ef696f32e99746cdabea9e30be7c03b96)
Package @uh-platform/domain-widget@100.0.0 is a scoped placeholder with an empty author, generic description, and no real functionality. Its package.json declares scripts.preinstall = "node index.js", and index.js shells out via exec() to curl a hardcoded Burp Collaborator subdomain at http://pa33pg1od9cr4ffnrzec8864jvpmdd12.oastify.com/. On npm install, the installer's host performs a DNS+HTTP request to that attacker-controlled OAST endpoint, disclosing the installer's IP and host presence and confirming out-of-band code execution on the build machine. The @uh-platform scope combined with an inflated 100.0.0 version, empty metadata, and a preinstall-only payload is the canonical dependency-confusion shape targeting an internal namespace to shadow a private package during resolution.
- 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": "index.js",
"sha256": "f40ce98f65fd888ee41c09a8a85001c235a2ad90d53b385511bbb4603eb61122",
"tlsh": "50e07d0448f9443631629455f91e481e75479801113af14769cf9a101780588c01d2da"
},
{
"path": "package.json",
"sha256": "f60c5f51e56555a5eea2b34bd3a40d6f9e87819fd7d6d17145a5423da3642cc7",
"tlsh": "88d02b704e61953331c106e6886ad457a2718f6f04087c0867cb143c81dd37398ff30c"
}
],
"package_integrity": [
{
"filename": "domain-widget-100.0.0.tgz",
"hashes": {
"sha1": "448c7d3be662d6eac5b15d49ece897fcf48b3042",
"sha512_sri": "sha512-TIt1ld9oNzKCFpfhO8djawyTWDdlloK3S/Iug6HGje1CkVKS2yzOKUlWqQQeSPm2M0oFnY+8LhduqJJJph4X4g=="
}
}
]
}
},
"package": {
"ecosystem": "npm",
"name": "@uh-platform/domain-widget"
},
"versions": [
"100.0.0"
]
}
],
"credits": [
{
"contact": [
"inspector-research@amazon.com"
],
"name": "Amazon Inspector",
"type": "FINDER"
}
],
"database_specific": {
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-020270",
"import_time": "2026-09-21T19:14:59.912928655Z",
"modified_time": "2026-09-21T18:56:28Z",
"sha256": "1fa27cef146dec157eaf78519d56ff2ef696f32e99746cdabea9e30be7c03b96",
"source": "amazon-inspector",
"versions": [
"100.0.0"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (1fa27cef146dec157eaf78519d56ff2ef696f32e99746cdabea9e30be7c03b96)\nPackage @uh-platform/domain-widget@100.0.0 is a scoped placeholder with an empty author, generic description, and no real functionality. Its package.json declares scripts.preinstall = \"node index.js\", and index.js shells out via exec() to curl a hardcoded Burp Collaborator subdomain at http://pa33pg1od9cr4ffnrzec8864jvpmdd12.oastify.com/. On `npm install`, the installer\u0027s host performs a DNS+HTTP request to that attacker-controlled OAST endpoint, disclosing the installer\u0027s IP and host presence and confirming out-of-band code execution on the build machine. The `@uh-platform` scope combined with an inflated 100.0.0 version, empty metadata, and a preinstall-only payload is the canonical dependency-confusion shape targeting an internal namespace to shadow a private package during resolution.\n",
"id": "MAL-2026-16359",
"modified": "2026-09-21T18:56:28Z",
"published": "2026-09-21T18:56:28Z",
"references": [
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/@uh-platform/domain-widget/v/100.0.0"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in @uh-platform/domain-widget (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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.