mal-2026-6195
Vulnerability from ossf_malicious_packages
Published
2026-06-19 04:30
Modified
2026-06-19 04:30
Summary
Malicious code in ts-linter-builders (npm)
Details
-= Per source details. Do not edit below this line.=-
Source: amazon-inspector (a22153f1e71ba9fb51ce22d5fc57180ce4d8998995fbc4bd554d6dd532c195b6)
index.js imports child_process and contains a hardcoded outbound POST to https://tg-wallet-manager.vercel.app, with additional fetch() calls to the same destination. The code reads environment data and host identifiers and ships them to this attacker-controlled endpoint. The package name advertises a TypeScript linter helper, but the embedded behavior is unrelated to linting and matches the shape of a credential/host-info beacon. The hardcoded third-party Vercel-hosted endpoint, combined with environment reads and child_process import, constitutes an installer-side exfiltration / RCE staging surface with no legitimate purpose for a 'linter builder' package.
CWE
- CWE-506 - The product contains code that appears to be malicious in nature.
Credits
{
"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": "40f9a81d39fc4fc5a1895aa2f82b01fab53b5eae8b61c80885affddb485db439",
"tlsh": "28f164d991372661cfb233b85a03100dfbdad12339028651b6ec46486f7b52865e2eee"
}
],
"package_integrity": [
{
"filename": "ts-linter-builders-1.0.4.tgz",
"hashes": {
"sha1": "b2b1e7e742e14de6f25aaed7e0eb43d651f949e3",
"sha512_sri": "sha512-pD2FpJNDdBZ4OTc6yapxR4iYqBBkzlOCfqvjlBLqu36W7LZQuZZakGkxcK6084DFlIGC2Si82QT4tvAZX0a//g=="
}
}
]
}
},
"package": {
"ecosystem": "npm",
"name": "ts-linter-builders"
},
"versions": [
"1.0.4"
]
}
],
"credits": [
{
"contact": [
"inspector-research@amazon.com"
],
"name": "Amazon Inspector",
"type": "FINDER"
}
],
"database_specific": {
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-007045",
"import_time": "2026-06-19T05:16:48.600745745Z",
"modified_time": "2026-06-19T04:30:48Z",
"sha256": "a22153f1e71ba9fb51ce22d5fc57180ce4d8998995fbc4bd554d6dd532c195b6",
"source": "amazon-inspector",
"versions": [
"1.0.4"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (a22153f1e71ba9fb51ce22d5fc57180ce4d8998995fbc4bd554d6dd532c195b6)\nindex.js imports child_process and contains a hardcoded outbound POST to https://tg-wallet-manager.vercel.app, with additional fetch() calls to the same destination. The code reads environment data and host identifiers and ships them to this attacker-controlled endpoint. The package name advertises a TypeScript linter helper, but the embedded behavior is unrelated to linting and matches the shape of a credential/host-info beacon. The hardcoded third-party Vercel-hosted endpoint, combined with environment reads and child_process import, constitutes an installer-side exfiltration / RCE staging surface with no legitimate purpose for a \u0027linter builder\u0027 package.\n",
"id": "MAL-2026-6195",
"modified": "2026-06-19T04:30:48Z",
"published": "2026-06-19T04:30:48Z",
"references": [
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/ts-linter-builders/v/1.0.4"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in ts-linter-builders (npm)"
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
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