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Malware in @img-hls/vtt.js

Malware discovered in the npm package @img-hls/vtt.js. Systems with this package installed are considered fully compromised and require immediate remediation.

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Disclosed
Last updated
Blast radius
Any system with the package installed or running
Ecosystems
Attack vectors
Affected entities
  • @img-hls/vtt.js

A critical malware incident was identified in the npm package @img-hls/vtt.js. According to the GitHub Advisory (GHSA-7752-87g2-6jgf), any computer with this package installed or running should be considered fully compromised.\n\nThe advisory indicates that all secrets and keys stored on affected computers should 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 package compromise.\n\nThis represents a severe supply chain attack through a compromised npm package with full system compromise potential.

Indicators of compromise

Packages
  • @img-hls/vtt.js

Remediation

  • Immediately isolate any system with @img-hls/vtt.js installed from the network
  • Rotate all secrets, API keys, and credentials from a different, uncompromised computer
  • Remove the @img-hls/vtt.js package from all systems
  • Perform a full forensic analysis and malware scan on affected systems
  • Review system logs and network traffic for signs of unauthorized access or data exfiltration
  • Consider full system rebuild if compromise is confirmed

Sources

  1. GitHub Advisory GHSA-7752-87g2-6jgf · GitHub Advisory Database

Cite this entry

"Malware in @img-hls/vtt.js." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 29, 2026; last updated June 29, 2026. https://supplychainattack.org/incident/malware-in-img-hls-vtt-js-rbbvgt

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