Critical

144 Mastra npm Packages Compromised via Hijacked Contributor Account

The Hacker News

June 17, 2026 at 7:38 AM

Actively Exploited

Overview

Researchers have uncovered a software supply chain attack affecting 144 npm packages linked to the Mastra namespace, which is used for building AI applications. The attack, identified by JFrog, SafeDep, Socket, and StepSecurity, involved the hijacking of a single npm account belonging to a user named 'ehindero', who then published malicious versions of these packages. This incident raises significant concerns for developers who rely on the Mastra framework, as it could lead to the introduction of vulnerabilities in their applications. Users of these compromised packages are urged to check their dependencies and update to secure versions to avoid potential risks. This event serves as a reminder of the importance of securing contributor accounts in open-source ecosystems.

Key Takeaways

Active Exploitation: This vulnerability is being actively exploited by attackers. Immediate action is recommended.
Affected Systems: @mastra/* npm packages
Action Required: Users should check their dependencies and update to secure versions of the affected packages.
Timeline: Newly disclosed

Original Article Summary

As many as 144 npm packages associated with the Mastra namespace ("@mastra/*"), a popular open-source JavaScript and TypeScript framework for building artificial intelligence (AI) applications, have been compromised as part of a software supply chain attack codenamed easy-day-js, per findings from JFrog, SafeDep, Socket, and StepSecurity. "A single npm account (ehindero) mass-published more

Impact

@mastra/* npm packages

Exploitation Status

This vulnerability is confirmed to be actively exploited by attackers in real-world attacks. Organizations should prioritize patching or implementing workarounds immediately.

Timeline

Newly disclosed

Remediation

Users should check their dependencies and update to secure versions of the affected packages.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to Update, Malware.

Read Original Article

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