TanStack Npm Packages Compromised Inside The Mini Shai Hulud Supply Chain Attack
2026-05-13T20:52:02Z•e46b9f05e2b0c7b9abd883fbfd46eacf3d68da1432748a51432b90bf164158cd
buncache-poisoningcredential-stealergithub-actionsincident-responsemini-shai-huludnpmoidc-token-extractionpatchingpypislsasupply-chaintanstackthymeleaf
What happened
Multiple related supply-chain incidents in Apr–May 2026: the “Mini Shai‑Hulud” campaign compromised npm packages (including 84 artifacts across 42 @tanstack/* packages and other namespaces) by leveraging a GitHub Actions “Pwn Request”, cache poisoning, and extraction of OIDC tokens from runner memory — producing the first npm supply‑chain compromise with valid SLSA Build Level 3 attestations. A malicious PyPI release (lightning) and earlier npm packages (SAP @cap-js, mbt) shipped Bun‑based credential stealers that run on import. Separately, a high‑severity Thymeleaf template injection (CVE‑202
Why it matters
A reviewed impact interpretation has not been published for this record.
Evidence and limitations
- Source ID
- snyk_blog
- Record identifier
- e46b9f05e2b0c7b9abd883fbfd46eacf3d68da1432748a51432b90bf164158cd
- Enrichment time
- 2026-05-13T20:52:02Z
- AI-assisted enrichment
- Yes
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