OpenAI hit by supply chain attack linked to malicious TanStack packages
OpenAI said the TanStack supply chain attack compromised two employee devices and exposed credentials from code repositories. OpenAI confirmed that the recent TanStack supply chain attack compromised two employee devices and exposed credential material stored in internal source code repositories. The incident began after the TeamPCP hacking group abused weaknesses in the package publishing process […]

OpenAI confirmed that the recent TanStack supply chain attack compromised two employee devices and exposed credential material stored in internal source code repositories. The incident began after the TeamPCP hacking group abused weaknesses in the package publishing process to distribute 84 malicious packages tied to the TanStack open source development ecosystem.
Recently, the TeamPCP group launched a new wave of the Mini Shai-Hulud worm, compromising legitimate npm packages through hijacked GitHub Actions OIDC tokens. The malware spread through trusted release pipelines and even generated valid SLSA Level 3 attestations, making the malicious packages appear legitimate. Researchers say the worm steals secrets from CI/CD environments, targets more than 100 credential locations, installs persistence mechanisms in developer tools like VS Code and Claude Code, and spreads automatically to other packages controlled by compromised maintainers. The campaign has already affected packages linked to TanStack, UiPath, DraftLab, and others.
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- OpenAI Hit by TanStack Supply Chain Attack2026-05-15
Two employee devices were compromised in the attack, and credential material was stolen from OpenAI code repositories. The post OpenAI Hit by TanStack Supply Chain Attack appeared first on SecurityWeek.
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