Malicious code in txs-lib-sdk (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (5575013ead36c1ebb523009215200be0a1bf61d21285ca8515573963a63e3aa5) The package's advertised getTransactions() API invokes an internal loader that reads database.js — a file disguised as a product catalog — extracts each record's `mark` field, base64-decodes it and applies a per-byte Caesar shift, concatenates the result into a code string, and passes it to the Function constructor together with Buffer, require, and process. This yields arbitrary Node.js execution with full filesystem, network, and child_process capabilities on the caller's host whenever the documented API is used. index.js hides the sink by reconstructing the identifiers 'setTimeout', 'Function', 'Buffer', 'require', and 'process' from a split string-array and by resolving the Function constructor indirectly via globalThis.constructor.constructor. The multi-layer obfuscation (identifier reassembly, indirect constructor lookup, base64+Caesar-encoded payload, JSON-shaped carrier file, deferred setTimeout) has no legitimate purpose for a package presented as a transactions helper and is the concealment layer of a supply-chain loader. ## Source: ghsa-malware (be8fdee0fed990fd22edd1188e06d7601d45db4031bd545667852f91b8120395) 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 pack
MAL-2026-14198
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:MAL-2026-14198
txs-lib-sdk
Source reference: /affected/0/package/name
- Affected versions
- 1.0.2
Source reference:
/affected/0/versions1.0.1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "SEMVER",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "txs-lib-sdk",
"purl": "pkg:npm/txs-lib-sdk",
"ecosystem": "npm"
},
"versions": [
"1.0.2",
"1.0.1"
],
"database_specific": {
"cwes": [
{
"name": "Embedded Malicious Code",
"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",
"cweId": "CWE-506",
"description": "The product contains code that appears to be malicious in nature."
}
],
"source": "https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/txs-lib-sdk/MAL-2026-14198.json",
"indicators": {
"evidence_files": [
{
"path": "index.js",
"tlsh": "0ef10f6839f930248857b07c67eb9449612de0576e9a6ca87f4d83101f7d13ce1f6ba8",
"sha256": "c0a1a7e54e1c759e62e48cfa835d79494163da3b37b30c1bd55c5875d9dd24f0"
}
],
"package_integrity": [
{
"hashes": {
"sha1": "50ecafed1e2e1dc44734289055f64dc1bebb3a5e",
"sha512_sri": "sha512-O97tStb5/aXDgBuTUVQLYbI6BX5nj+cisfAkuQ6MTL23XjWrZfEarSObUHANOFCqLZp3u1lukB1WwixbEcWcew=="
},
"filename": "txs-lib-sdk-1.0.2.tgz"
}
]
}
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #33422 · Revision 1
- Added to Heist Feed
- Publisher date