mal-2026-4808
Vulnerability from ossf_malicious_packages
-= Per source details. Do not edit below this line.=-
Source: amazon-inspector (d2acf2a0d94ec1d2bada80f3251f5ecbea64d78ffadcab2b997b9708c2ae71cd)
package.json declares "node-fetch": "https://registry.ctzbg.com/wm-idp-sdk/node-fetch" — a direct HTTPS tarball URL hosted on a domain (registry.ctzbg.com) unrelated to the SDK's apparent publisher (walkme.com). The URL has no version pin, no commit/tag, and no integrity hash, so every npm install fetches whatever bytes the operator of that host currently serves and installs them as the package's node-fetch. dist/main.js then require('node-fetch') at module top, so the fetched code executes in any process that imports wm-idp-sdk. The host owner can swap the payload at any time without republishing wm-idp-sdk, giving them an open code-execution channel into every installer. The package additionally impersonates Walkme's IDP SDK (description references WM Identity Provider, posts to https://ec.walkme.com/event/log, uses storage key wm-ic-idp-end-user-info) while being published by the personal npm account hwmenv rather than the @walkme/* scope — namespace-abuse intent that compounds the install-time-RCE risk.
Source: ghsa-malware (ca37741d2749ad24ad77568dd36df176b32e5092cfdd703ee73e2d0ef7b79958)
Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
{
"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": {
"domains": [
"registry.ctzbg.com"
],
"evidence_files": [
{
"path": "package.json",
"sha256": "1f1cf0776d43bb9d7a34539911c67368d7cccdc00455adbc76bcfb1b2ef5eb6a",
"tlsh": "78119239c9244c7325c82296ad2d1253b5128c1b48a4bc0cb7c7162c8f1e1bf14fcaae"
}
],
"package_integrity": [
{
"filename": "wm-idp-sdk-1.2.1.tgz",
"hashes": {
"sha1": "33343547f90ba2de75c212ea9c19e6f33de484ca",
"sha512_sri": "sha512-cxP3MzHMeqfm0G2R9KQYM4U4ILVMiWNWtIJKkNUACxHxGzmlYOnF5riiFA2biYs3dWZ6wp6aBA8iREctpLh66w=="
}
}
]
}
},
"package": {
"ecosystem": "npm",
"name": "wm-idp-sdk"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "SEMVER"
}
],
"versions": [
"1.2.1"
]
}
],
"aliases": [
"GHSA-hq9q-4jgc-997v"
],
"credits": [
{
"contact": [
"actran@amazon.com"
],
"name": "Amazon Inspector",
"type": "FINDER"
}
],
"database_specific": {
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-004887",
"import_time": "2026-05-26T13:32:45.393430056Z",
"modified_time": "2026-05-26T09:49:02Z",
"sha256": "88f2533b11955d8b97d811feb55dc9bd7f1ebe2f8811ae2724cf152b987662db",
"source": "amazon-inspector",
"versions": [
"1.2.1"
]
},
{
"id": "IN-MAL-2026-004886",
"import_time": "2026-05-26T13:32:45.327658936Z",
"modified_time": "2026-05-26T09:49:01Z",
"sha256": "d2acf2a0d94ec1d2bada80f3251f5ecbea64d78ffadcab2b997b9708c2ae71cd",
"source": "amazon-inspector",
"versions": [
"1.2.1"
]
},
{
"id": "GHSA-hq9q-4jgc-997v",
"import_time": "2026-08-25T17:25:28.263439029Z",
"modified_time": "2026-08-25T16:57:20Z",
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "SEMVER"
}
],
"sha256": "ca37741d2749ad24ad77568dd36df176b32e5092cfdd703ee73e2d0ef7b79958",
"source": "ghsa-malware"
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (d2acf2a0d94ec1d2bada80f3251f5ecbea64d78ffadcab2b997b9708c2ae71cd)\npackage.json declares `\"node-fetch\": \"https://registry.ctzbg.com/wm-idp-sdk/node-fetch\"` \u2014 a direct HTTPS tarball URL hosted on a domain (`registry.ctzbg.com`) unrelated to the SDK\u0027s apparent publisher (walkme.com). The URL has no version pin, no commit/tag, and no integrity hash, so every `npm install` fetches whatever bytes the operator of that host currently serves and installs them as the package\u0027s `node-fetch`. `dist/main.js` then `require(\u0027node-fetch\u0027)` at module top, so the fetched code executes in any process that imports `wm-idp-sdk`. The host owner can swap the payload at any time without republishing wm-idp-sdk, giving them an open code-execution channel into every installer. The package additionally impersonates Walkme\u0027s IDP SDK (description references `WM Identity Provider`, posts to `https://ec.walkme.com/event/log`, uses storage key `wm-ic-idp-end-user-info`) while being published by the personal npm account `hwmenv` rather than the `@walkme/*` scope \u2014 namespace-abuse intent that compounds the install-time-RCE risk.\n\n## Source: ghsa-malware (ca37741d2749ad24ad77568dd36df176b32e5092cfdd703ee73e2d0ef7b79958)\nAny computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.\n",
"id": "MAL-2026-4808",
"modified": "2026-08-25T17:27:32.757455826Z",
"published": "2026-05-26T09:49:01Z",
"references": [
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/wm-idp-sdk/v/1.2.1"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-hq9q-4jgc-997v"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in wm-idp-sdk (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.