Record / supply chain · Unknown · 2026-09-17

Hijacked AI coding assistant session spread malware to about 100 repositories

supply chainAI eraconfidence 80anonymized

An attacker hijacked an active AI coding-assistant session at an unnamed SaaS provider and spread Shai-Hulud malware across approximately 100 internal code repositories. The attacker poisoned software that the AI assistant recommended, and the recommendation was accepted, enabling the worm to steal repository secrets and source code.

Organization
Not named. A primary source is on file; a reviewer decides whether to name it.
Country · sector
Unknown · Software Development
Dates
occurred – · disclosed 2026-09-16 · published 2026-09-17
Tags
ai-era, news

Sources

Defenses for this class of incident

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A supply chain sits in these classes of the AI-security landscape. The companies below work on that class of problem. This is a taxonomy, not a claim that any of them would have changed this incident.

HeimWall Operator
AI data governanceRuntime guardrailsObservability & governance
United States · est. 2025
Runtime guardrailsObservability & governanceAI code security
United Kingdom · est. 2024 · raised $13M
Runtime guardrailsAI code securityObservability & governance
Israel · est. 2024 · raised $8M
Runtime guardrailsObservability & governance
United States · est. 2025
Observability & governance
United States · est. 2018 · raised $45M

Vendor data: AI Security Startups Map by Prompt Security (CC BY 4.0), synced daily. startups.prompt.security. Paid placements are labelled Sponsored; HeimWall, which runs this site, is labelled Operator. 451 companies in the directory.

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