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CVE-2026-453219.6/CRITICALEPSS 94.0%CISA KEV
2026-05-12

TanStack npm Packages Supply Chain Compromise via GitHub Actions OIDC Exploitation (CVE-2026-45321)

[Affected Scope] 84 malicious versions across 42 @tanstack/* packages published between 19:20 and 19:26 UTC on 2026-05-11

[Impact] Attackers successfully published credential-stealing malware under trusted identities by hijacking legitimate OIDC tokens

[Mitigation] Immediately audit dependency trees, purge affected package versions, and rotate all potentially exposed credentials