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Malware in @mastra/e2b

Malware discovered in the npm package @mastra/e2b. Any computer with this package installed or running should be considered fully compromised. All secrets and keys must be rotated immediately from a different computer.

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Disclosed
Last updated
Blast radius
Any system with the package installed or running
Ecosystems
Attack vectors
Affected entities
  • @mastra/e2b

A critical malware incident was identified in the npm package @mastra/e2b. According to the GitHub Security Advisory (GHSA-jg9x-69gr-j4hh), any system that has installed or executed this package should be treated as fully compromised.\n\nThe advisory recommends immediate action: all secrets and cryptographic keys stored on affected computers must be rotated 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 compromise.\n\nThe package should be considered a supply chain attack vector affecting all downstream users and systems that depend on @mastra/e2b.

Indicators of compromise

Packages
  • @mastra/e2b

Remediation

  • Immediately remove the @mastra/e2b package from all systems
  • Rotate all secrets, API keys, and cryptographic credentials from a different, uncompromised computer
  • Conduct a full security audit of any system that had this package installed
  • Review system logs and network traffic for signs of unauthorized access or data exfiltration
  • Consider the affected system(s) as potentially fully compromised and plan for forensic analysis or rebuild
  • Notify all downstream users and services that depend on @mastra/e2b

Sources

  1. GitHub Advisory GHSA-jg9x-69gr-j4hh · GitHub Advisory Database

Cite this entry

"Malware in @mastra/e2b." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 17, 2026; last updated June 20, 2026. https://supplychainattack.org/incident/malware-in-mastra-e2b-149m5b

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