MAL-2026-14198
Dashboard / Malicious Package / MAL-2026-14198
MAL-2026-14198
Summary: Malicious code in txs-lib-sdk (npm)
Details: 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.
Affected packages
Package
Name: txs-lib-sdk
Purl: pkg:npm/txs-lib-sdk
Affected ranges
Type: N/A
Events:
