Claude AI-weaponized Vulnerability

Hackers exploited a vulnerable workflow in the Nx build system to achieve code injection and GITHUB_TOKEN theft, enabling the publication of malicious package versions. These malicious packages deployed a post-install script that exfiltrated thousands of sensitive credentials and notably weaponized AI assistants like Claude and Gemini for reconnaissance and data exfiltration.

What Happened

Hackers exploited a vulnerable workflow in the Nx build system to achieve code injection and GITHUB_TOKEN theft, enabling the publication of malicious package versions. These malicious packages deployed a post-install script that exfiltrated thousands of sensitive credentials and notably weaponized AI assistants like Claude and Gemini for reconnaissance and data exfiltration.

Why This Matters

Publisher reporting describes a security event affecting Nx. BugSkan could not yet bind a CVE or affected version, so treat the source details as the current record.

Recommended Action

Confirm whether Nx is present in your environment and review vendor guidance for this report. Apply available patches or mitigations if your deployment matches the described conditions.

Exposure

Exposure reason: This incident does not currently match a technology in My Interests.

Exploitation status: ACTIVELY_EXPLOITED

Primary entities:

Timeline

• Incident first seen
  Aug 28, 2025 05:30

  BugSkan first recorded this incident.

• Hackers Target Popular Nx Build System in First AI-Weaponized Supply Chain Attack - SecurityWeek
  Aug 28, 2025 05:30

  securityweek.com · Vulnerability

Sources

Related Incidents

Other BugSkan incidents that share identifiers, products, or vendors with this report.

My Interests Match