Malware in @mastra/cursor
Malware discovered in the npm package @mastra/cursor. Systems with this package installed are considered fully compromised with potential for complete system control by external entities.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- @mastra/cursor
A critical malware incident was identified in the npm package @mastra/cursor, published as GitHub Advisory GHSA-cp3h-358p-m8h2 on June 17, 2026.\n\nAccording to the advisory, any computer with this package installed or running should be considered fully compromised. The malware grants external entities potential full control of affected systems.\n\nImmediate remediation requires rotating all secrets and keys from a different, uncompromised computer. While the package should be removed, complete removal of all malicious software cannot be guaranteed due to the level of system compromise.\n\nUsers should assume that removing the package alone may not eliminate all malicious artifacts introduced during installation.
Indicators of compromise
- Packages
- @mastra/cursor
Remediation
- Immediately rotate all secrets, keys, and credentials from a different, uncompromised computer
- Remove the @mastra/cursor package from all affected systems
- Conduct a full security audit and forensic analysis of any system that had this package installed
- Monitor affected systems for signs of persistent compromise or unauthorized access
- Consider full system reimaging if complete removal of malware cannot be verified
Sources
- GitHub Advisory GHSA-cp3h-358p-m8h2 · GitHub Advisory Database
Cite this entry
"Malware in @mastra/cursor." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 17, 2026; last updated June 20, 2026. https://supplychainattack.org/incident/malware-in-mastra-cursor-1adb24
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