Description
On 2026-05-11, between approximately 19:20 and 19:26 UTC, 84 malicious versions across 42 @tanstack/* packages were published to the npm registry. The publishes were authenticated via the legitimate GitHub Actions OIDC trusted-publisher binding for TanStack/router, but the publish workflow itself was not modified.
Recommendation
Update the @tanstack/zod-adapter package to the latest compatible version. Followings are version details:
Affected version(s): **= 1.166.15 = 1.166.12** - Patched version(s): 1.166.16
References
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- Malware in @tanstack/* packages exfiltrates cloud credentials, GitHub tokens, and SSH keys - @tanstack/router-devtools - CVE-2026-45321
- Malware in @tanstack/* packages exfiltrates cloud credentials, GitHub tokens, and SSH keys - @tanstack/router-generator - CVE-2026-45321
- Malware in @tanstack/* packages exfiltrates cloud credentials, GitHub tokens, and SSH keys - @tanstack/react-start-rsc - CVE-2026-45321
- Malware in @tanstack/* packages exfiltrates cloud credentials, GitHub tokens, and SSH keys - @tanstack/react-start-client - CVE-2026-45321
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See something that needs correcting? Let us knowUpdated June 08, 2026