Checkmarx Jenkins AST Plugin Compromised in Supply Chain Attack

SecurityWeek

May 11, 2026 at 9:34 AM

Actively Exploited

Overview

Last week, a compromised version of the Checkmarx Jenkins AST plugin was found on the Jenkins Marketplace, raising concerns about supply chain security. This malicious plugin could potentially allow attackers to exploit Jenkins users who download it, putting their systems at risk. Companies using Jenkins for continuous integration and continuous delivery (CI/CD) processes need to be especially vigilant, as this incident highlights the dangers of third-party plugins. Users are urged to review their installed plugins and ensure they are using legitimate versions from trusted sources. The incident serves as a reminder of the importance of securing software supply chains against such attacks.

Key Takeaways

Active Exploitation: This vulnerability is being actively exploited by attackers. Immediate action is recommended.
Affected Systems: Checkmarx Jenkins AST plugin
Action Required: Users should remove the compromised plugin and ensure they download plugins only from verified sources.
Timeline: Newly disclosed

Original Article Summary

A malicious version of the plugin was published to the Jenkins Marketplace late last week. The post Checkmarx Jenkins AST Plugin Compromised in Supply Chain Attack appeared first on SecurityWeek.

Impact

Checkmarx Jenkins AST plugin

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 remove the compromised plugin and ensure they download plugins only from verified sources.

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 Exploit, Malware.

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