Checkmarx Jenkins AST Plugin Compromised in KICS Supply Chain Attack

Gbhackers •Mayura Kathir • May 12, 2026

Supply chain campaign has now extended to Checkmarx’s Jenkins ecosystem, with attackers pushing a malicious Checkmarx Jenkins AST plugin to the official Jenkins Marketplace as part of the ongoing KICS/Trivy-linked compromise. The rogue release is identified as version 2026.5.09 and includes tampered plugin artifacts, while the last known-good Jenkins AST plugin build remains 2.0.13-829.vc72453fa_1c16, released […]

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Checkmarx Jenkins Plugin Compromised by TeamPCP Malware Attack Checkmarx reported a malicious version of its Jenkins AST plugin was uploaded to the Jenkins Marketplace on May 9, 2026. This backdoored plugin, which affects security scans in Jenkins CI pipelines, poses a significant risk as it can compromise multiple projects by exploiting trusted infrastructure. Users are advised to verify they are using the correct version (2.0.13-829.vc72453fa_1c16) released on December 17, 2025. The attack is attributed to TeamPCP, which has previously targeted Checkmarx's tools, including its GitHub Actions plugin and KICS static analysis tool. The malware, dubbed Shail-Hulud, has a CVSS score of 9.4, indicating a critical vulnerability. This incident marks the third compromise of Checkmarx's packages in recent months, raising concerns about the company's security practices. Checkmarx is actively working to remove the malicious plugin and has urged users to rotate their secrets immediately. 9 sources 73

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Checkmarx Jenkins AST Plugin Compromised in KICS Supply Chain Attack

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