mal-2026-17806
Vulnerability from ossf_malicious_packages
ap3-foundations-ui describes itself as a security research PoC for dependency confusion and does not identify an upstream package it copies. Its preinstall hook runs node index.js during npm install; the script sends the package name and version, hostname, username, home directory, working directory, platform, architecture, and CI flag to https://webhook.site/7dbd5e4e-3156-427f-b383-30c14d845587. The npm account vikkuthetester22 published it on 2026-10-12.
-= Per source details. Do not edit below this line.=-
Source: amazon-inspector (7469eefaab624821647b4e412c4ceac1f422d4857b8484767041fdc355398477)
The package's preinstall hook runs index.js, which collects installer host identifiers (os.hostname(), os.userInfo().username, os.homedir(), process.cwd(), os.platform(), os.arch(), and process.env.CI) and POSTs them as JSON to a hardcoded third-party collector at https://webhook.site/7dbd5e4e-3156-427f-b383-30c14d845587. The behavior fires automatically on npm install without caller consent. The package is published at version 99.0.1 under a name consistent with an internal/private namespace, matching the shape of a dependency-confusion beacon used to confirm successful name hijack in a target environment. The exfiltrated fields identify the installing host, user account, working directory, and CI status — information useful for targeting follow-on attacks against the organization whose build pulled the package.
{
"affected": [
{
"database_specific": {
"cwes": [
{
"cweId": "CWE-506",
"description": "The product contains code that appears to be malicious in nature.",
"name": "Embedded Malicious Code"
},
{
"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": "289c3b12fdd5798f6c38b731035ab96abc736f80a0c226d279fd96ebfbe2075a",
"tlsh": "9f1140e016b16b300ff69bc13885dd0512b6e522b10f7de0bb8912e4578e6f900729f9"
}
],
"package_integrity": [
{
"filename": "ap3-foundations-ui-99.0.1.tgz",
"hashes": {
"sha1": "7d9d180ba806adbf9ad68bf58e8e14296f096ec3",
"sha512_sri": "sha512-66vCx1gasRYVhVMz5QOAWWJq/ff7sSK+LkQx0mAJhbc+pt9RjkAsHiXNXUpVjIDA003Yy3SHkYN8akmlLis7EQ=="
}
}
]
}
},
"package": {
"ecosystem": "npm",
"name": "ap3-foundations-ui"
},
"versions": [
"99.0.1"
]
}
],
"credits": [
{
"contact": [
"inspector-research@amazon.com"
],
"name": "Amazon Inspector",
"type": "FINDER"
},
{
"contact": [
"https://www.invisirisk.com",
"mailto:research@invisirisk.com"
],
"name": "InvisiRisk, Inc.",
"type": "FINDER"
}
],
"database_specific": {
"iocs": {
"files": [
{
"digests": {
"sha256": "44180ea5d9e3df9978bc4c5a0be8635656f7ca8b73e9ddd9e1d384d673e53604"
},
"note": "preinstall script: node index.js",
"paths": [
"package.json"
],
"source": "PACKAGE_ARCHIVE"
},
{
"digests": {
"sha256": "289c3b12fdd5798f6c38b731035ab96abc736f80a0c226d279fd96ebfbe2075a"
},
"note": "Executed by the preinstall script of ap3-foundations-ui@99.0.1.",
"paths": [
"index.js"
],
"source": "PACKAGE_ARCHIVE"
}
],
"urls": [
"https://webhook.site/7dbd5e4e-3156-427f-b383-30c14d845587"
]
},
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-021459",
"import_time": "2026-10-12T04:58:42.447698328Z",
"modified_time": "2026-10-12T04:56:13Z",
"sha256": "7469eefaab624821647b4e412c4ceac1f422d4857b8484767041fdc355398477",
"source": "amazon-inspector",
"versions": [
"99.0.1"
]
}
]
},
"details": "ap3-foundations-ui describes itself as a security research PoC for dependency confusion and does not identify an upstream package it copies. Its `preinstall` hook runs `node index.js` during `npm install`; the script sends the package name and version, hostname, username, home directory, working directory, platform, architecture, and CI flag to `https://webhook.site/7dbd5e4e-3156-427f-b383-30c14d845587`. The npm account vikkuthetester22 published it on 2026-10-12.\n\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (7469eefaab624821647b4e412c4ceac1f422d4857b8484767041fdc355398477)\nThe package\u0027s preinstall hook runs index.js, which collects installer host identifiers (os.hostname(), os.userInfo().username, os.homedir(), process.cwd(), os.platform(), os.arch(), and process.env.CI) and POSTs them as JSON to a hardcoded third-party collector at https://webhook.site/7dbd5e4e-3156-427f-b383-30c14d845587. The behavior fires automatically on `npm install` without caller consent. The package is published at version 99.0.1 under a name consistent with an internal/private namespace, matching the shape of a dependency-confusion beacon used to confirm successful name hijack in a target environment. The exfiltrated fields identify the installing host, user account, working directory, and CI status \u2014 information useful for targeting follow-on attacks against the organization whose build pulled the package.\n",
"id": "MAL-2026-17806",
"modified": "2026-10-13T06:42:15.615864642Z",
"published": "2026-10-12T00:57:37Z",
"references": [
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/ap3-foundations-ui/v/99.0.1"
},
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/ap3-foundations-ui"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in ap3-foundations-ui (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.