MAL-2026-3749
Vulnerability from ossf_malicious_packages
-= Per source details. Do not edit below this line.=-
Source: amazon-inspector (cbad3803cdda40845fe2aa64e0963b9293f9ee523b3f9205a354da2ae1e317bf)
package.json declares "preinstall": "node index.js", which runs automatically on npm install. index.js collects os.hostname(), os.platform(), os.arch(), os.homedir(), os.userInfo() (username, uid, gid, shell), OS release/memory/CPU info, process.cwd(), and the output of shell commands whoami and id, then POSTs the aggregated JSON to https://oia2jeijtfmt053ynp686t5riioac00p.oastify.com/testbydext. The destination is a Burp Suite Collaborator out-of-band interaction subdomain controlled by the attacker. The package has no legitimate functionality — index.js contains only the exfiltration payload, and package.json carries empty author/description fields under a scope (@webapp-next) that resembles a legitimate namespace, consistent with a dependency-confusion lure.
{
"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": "5e497bd84896699086b7444a0e8180f761affd89b916fa67093e9dbb4d231558",
"tlsh": "c2515fc516f65a251ba7b8494a4f9002b327e0033649ee55bfcc8740af9837c97f0af2"
},
{
"path": "package.json",
"sha256": "0ad68eede34ba2906eb27bc9cbb196c5e58725334360cde0236341ec224ce542",
"tlsh": "86d05e385e21653325c50296482b988672a18e2f09047c0877cb582c528e67798fb35c"
}
],
"package_integrity": [
{
"filename": "store-91.1.0.tgz",
"hashes": {
"sha1": "516f3f665050324eef513a15a26cebb6edbc8a59",
"sha512_sri": "sha512-DHkuKgahyrLbuOlwGTkT7OJdRcj0nLvMAvcTvOG09xLYn+eMgGUdrXOrRdnxiahUEgtoTGV7sTdGaKXo4BxlZQ=="
}
}
]
}
},
"package": {
"ecosystem": "npm",
"name": "@webapp-next/store"
},
"versions": [
"91.1.0"
]
}
],
"credits": [
{
"contact": [
"actran@amazon.com"
],
"name": "Amazon Inspector",
"type": "FINDER"
}
],
"database_specific": {
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-002798",
"import_time": "2026-05-15T07:37:20.027681785Z",
"modified_time": "2026-05-15T02:51:07Z",
"sha256": "caf033fac1ae50b98e1a222c76831e7012e140234a28dd7e8d0a41a55cf388f7",
"source": "amazon-inspector",
"versions": [
"91.1.0"
]
},
{
"id": "IN-MAL-2026-002735",
"import_time": "2026-05-15T07:37:18.661452149Z",
"modified_time": "2026-05-14T19:25:34Z",
"sha256": "cbad3803cdda40845fe2aa64e0963b9293f9ee523b3f9205a354da2ae1e317bf",
"source": "amazon-inspector",
"versions": [
"91.1.0"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (cbad3803cdda40845fe2aa64e0963b9293f9ee523b3f9205a354da2ae1e317bf)\npackage.json declares \"preinstall\": \"node index.js\", which runs automatically on npm install. index.js collects os.hostname(), os.platform(), os.arch(), os.homedir(), os.userInfo() (username, uid, gid, shell), OS release/memory/CPU info, process.cwd(), and the output of shell commands `whoami` and `id`, then POSTs the aggregated JSON to https://oia2jeijtfmt053ynp686t5riioac00p.oastify.com/testbydext. The destination is a Burp Suite Collaborator out-of-band interaction subdomain controlled by the attacker. The package has no legitimate functionality \u2014 index.js contains only the exfiltration payload, and package.json carries empty author/description fields under a scope (@webapp-next) that resembles a legitimate namespace, consistent with a dependency-confusion lure.\n",
"id": "MAL-2026-3749",
"modified": "2026-05-15T07:39:04Z",
"published": "2026-05-14T19:25:34Z",
"references": [
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/@webapp-next/store/v/91.1.0"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in @webapp-next/store (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.