Malware in @tanstack/* packages exfiltrates cloud credentials, GitHub tokens, and SSH keys - @tanstack/vue-start-client

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/vue-start-client package to the latest compatible version. Followings are version details:

• Affected version(s): **= 1.166.49

  = 1.166.46**

• Patched version(s): 1.166.50

References

• GHSA-g7cv-rxg3-hmpx
• socket.dev
• tanstack.com
• www.stepsecurity.io
• www.cisa.gov
• CVE-2026-45321
• CWE-506
• CAPEC-310
• OWASP 2021-A6

Related Issues

• Malware in @tanstack/* packages exfiltrates cloud credentials, GitHub tokens, and SSH keys - @tanstack/vue-start - CVE-2026-45321
• Malware in @tanstack/* packages exfiltrates cloud credentials, GitHub tokens, and SSH keys - @tanstack/react-start-client - CVE-2026-45321
• Malware in @tanstack/* packages exfiltrates cloud credentials, GitHub tokens, and SSH keys - @tanstack/start-client-core - CVE-2026-45321
• Malware in @tanstack/* packages exfiltrates cloud credentials, GitHub tokens, and SSH keys - @tanstack/solid-start-client - CVE-2026-45321

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Tags:

npm

@tanstack/vue-start-client