Malware in txs-builder
The npm package txs-builder was found to contain malware, potentially giving outside entities full control of affected systems. All systems with this package installed should be considered compromised and require immediate remediation.
- Disclosed
- Last updated
- Blast radius
- Any system with txs-builder installed or running
- Ecosystems
- Attack vectors
- Affected entities
- txs-buildernpm package containing malware
The npm package txs-builder was identified as containing malware. According to the GitHub advisory (GHSA-5g95-w82p-69v9), any computer with this package installed or running should be considered fully compromised.\n\nThe advisory recommends that all secrets and keys stored on affected computers be rotated immediately from a different, uncompromised system. While the package should be removed, there is no guarantee that removal will eliminate all malicious software that may have been installed as a result of the initial compromise, given the potential for full system access by the attacker.\n\nAffected users should treat their systems as potentially fully compromised and take appropriate incident response measures.
Indicators of compromise
- Packages
- txs-builder
Remediation
- Immediately isolate affected systems from the network
- Rotate all secrets, API keys, and credentials from a different, uncompromised computer
- Remove the txs-builder package from all affected systems
- Perform a full security audit and malware scan of affected systems
- Review system logs for unauthorized access or activity
- Consider full system rebuild or forensic analysis if the system handles sensitive data
- Notify any services or systems that may have been accessed using credentials stored on the compromised system
Sources
- GitHub Advisory GHSA-5g95-w82p-69v9 · GitHub Advisory Database
Cite this entry
"Malware in txs-builder." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 27, 2026; last updated July 27, 2026. https://supplychainattack.org/incident/malware-in-txs-builder-13u8l9
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