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Malicious code in txs-runner-sdk (npm)

0
Unknown
Published: 08/19/2026 (08/19/2026, 01:16:13 UTC)
Source: GCVE Database
Product: txs-runner-sdk

Description

--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (db9d5d94b7f75bbe8bca33eb382bfb986e68b7f0307cad7e9626da103192f254) The package advertises itself as generating random transaction data, but its main API method getTransactions() invokes load_transaction_data(), which reads database.js (a JSON file whose records carry base64-encoded 'mark' fields), applies a per-character Caesar shift keyed by an item count, base64-decodes the concatenated result, and passes the resulting bytes to eval() inside a try/catch. The.js-suffixed data file, the double-encoded payload smuggled as product 'mark' fields, and the mismatch between the stated purpose (random data generation) and the presence of dynamic code execution together form a loader/dropper pattern: any consumer that calls the advertised API executes attacker-authored JavaScript in the calling process. Declared dependencies include axios and python-shell, consistent with a stager that fetches or spawns further payloads once the decoded code runs.

Affected software

npmghsa
txs-runner-sdk
Affected versions
=1.0.1

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

Technical Details

Gcve Source
db.gcve.eu
Osv Id
MAL-2026-14199
Osv Schema Version
1.7.4
Aliases
[]
Ecosystems
["npm"]
Database Specific Severity
null
Cvss Version
null

Threat ID: 6a85b4c8acd9273b4925289b

Added to database: 08/19/2026, 13:51:04 UTC

Last updated: 08/19/2026, 13:51:37 UTC

Views: 1

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